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Finding the Fourth Proportional to 15,007.62, 20,710.17 and 8,292.90

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Solution

The fourth proportional to 15,007.62, 20,710.17 and 8,292.90 is: 11,444.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.62 : 20,710.17 = 8,292.90 : x
  2. Step 2: Convert to fraction form
    15,007.62/20,710.17 = 8,292.90/x
  3. Step 3: Cross multiply
    15,007.62x = 20,710.17 × 8,292.90
  4. Step 4: Simplify right side
    15,007.62x = 171,747,368.79
  5. Step 5: Solve for x
    x = 171,747,368.79/15,007.62
  6. Step 6: Final answer
    x = 11,444.01

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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.