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Finding the Fourth Proportional to 12,521.59, 17,280.38 and 6,932.71

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Solution

The fourth proportional to 12,521.59, 17,280.38 and 6,932.71 is: 9,567.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.59 : 17,280.38 = 6,932.71 : x
  2. Step 2: Convert to fraction form
    12,521.59/17,280.38 = 6,932.71/x
  3. Step 3: Cross multiply
    12,521.59x = 17,280.38 × 6,932.71
  4. Step 4: Simplify right side
    12,521.59x = 119,799,863.23
  5. Step 5: Solve for x
    x = 119,799,863.23/12,521.59
  6. Step 6: Final answer
    x = 9,567.46

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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.