Home / 12,118.44-16,722.54-6,812.22

Finding the Fourth Proportional to 12,118.44, 16,722.54 and 6,812.22

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Solution

The fourth proportional to 12,118.44, 16,722.54 and 6,812.22 is: 9,400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.44 : 16,722.54 = 6,812.22 : x
  2. Step 2: Convert to fraction form
    12,118.44/16,722.54 = 6,812.22/x
  3. Step 3: Cross multiply
    12,118.44x = 16,722.54 × 6,812.22
  4. Step 4: Simplify right side
    12,118.44x = 113,917,621.44
  5. Step 5: Solve for x
    x = 113,917,621.44/12,118.44
  6. Step 6: Final answer
    x = 9,400.35

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Half scale
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Double scale
Find fourth proportional to 12,119.44, 16,723.92 and 6,813.22
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.