Home / 8,909.16-12,294.47-5,132.30

Finding the Fourth Proportional to 8,909.16, 12,294.47 and 5,132.30

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Solution

The fourth proportional to 8,909.16, 12,294.47 and 5,132.30 is: 7,082.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.16 : 12,294.47 = 5,132.30 : x
  2. Step 2: Convert to fraction form
    8,909.16/12,294.47 = 5,132.30/x
  3. Step 3: Cross multiply
    8,909.16x = 12,294.47 × 5,132.30
  4. Step 4: Simplify right side
    8,909.16x = 63,098,928.90
  5. Step 5: Solve for x
    x = 63,098,928.90/8,909.16
  6. Step 6: Final answer
    x = 7,082.48

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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.