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Finding the Fourth Proportional to 15,007.08, 20,711.02 and 8,294.02

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Solution

The fourth proportional to 15,007.08, 20,711.02 and 8,294.02 is: 11,446.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.08 : 20,711.02 = 8,294.02 : x
  2. Step 2: Convert to fraction form
    15,007.08/20,711.02 = 8,294.02/x
  3. Step 3: Cross multiply
    15,007.08x = 20,711.02 × 8,294.02
  4. Step 4: Simplify right side
    15,007.08x = 171,777,541.59
  5. Step 5: Solve for x
    x = 171,777,541.59/15,007.08
  6. Step 6: Final answer
    x = 11,446.43

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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.