Home / 8,782.05-12,117.44-5,195.24

Finding the Fourth Proportional to 8,782.05, 12,117.44 and 5,195.24

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Solution

The fourth proportional to 8,782.05, 12,117.44 and 5,195.24 is: 7,168.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.05 : 12,117.44 = 5,195.24 : x
  2. Step 2: Convert to fraction form
    8,782.05/12,117.44 = 5,195.24/x
  3. Step 3: Cross multiply
    8,782.05x = 12,117.44 × 5,195.24
  4. Step 4: Simplify right side
    8,782.05x = 62,952,922.42
  5. Step 5: Solve for x
    x = 62,952,922.42/8,782.05
  6. Step 6: Final answer
    x = 7,168.36

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Find fourth proportional to 4,391.03, 6,058.72 and 2,597.62
Half scale
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Double scale
Find fourth proportional to 8,783.05, 12,118.81 and 5,196.24
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.