Home / 8,130.92-11,220.62-4,594.14

Finding the Fourth Proportional to 8,130.92, 11,220.62 and 4,594.14

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Solution

The fourth proportional to 8,130.92, 11,220.62 and 4,594.14 is: 6,339.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.92 : 11,220.62 = 4,594.14 : x
  2. Step 2: Convert to fraction form
    8,130.92/11,220.62 = 4,594.14/x
  3. Step 3: Cross multiply
    8,130.92x = 11,220.62 × 4,594.14
  4. Step 4: Simplify right side
    8,130.92x = 51,549,099.17
  5. Step 5: Solve for x
    x = 51,549,099.17/8,130.92
  6. Step 6: Final answer
    x = 6,339.89

Related Problems

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Half scale
Find fourth proportional to 16,261.84, 22,441.24 and 9,188.28
Double scale
Find fourth proportional to 8,131.92, 11,222 and 4,595.14
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.