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Finding the Fourth Proportional to 11,572.71, 17,359.07 and 2,807.61

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Solution

The fourth proportional to 11,572.71, 17,359.07 and 2,807.61 is: 4,211.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,572.71 : 17,359.07 = 2,807.61 : x
  2. Step 2: Convert to fraction form
    11,572.71/17,359.07 = 2,807.61/x
  3. Step 3: Cross multiply
    11,572.71x = 17,359.07 × 2,807.61
  4. Step 4: Simplify right side
    11,572.71x = 48,737,498.52
  5. Step 5: Solve for x
    x = 48,737,498.52/11,572.71
  6. Step 6: Final answer
    x = 4,211.42

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.