Home / 15,787.98-23,663.52-8,766.36

Finding the Fourth Proportional to 15,787.98, 23,663.52 and 8,766.36

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Solution

The fourth proportional to 15,787.98, 23,663.52 and 8,766.36 is: 13,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,787.98 : 23,663.52 = 8,766.36 : x
  2. Step 2: Convert to fraction form
    15,787.98/23,663.52 = 8,766.36/x
  3. Step 3: Cross multiply
    15,787.98x = 23,663.52 × 8,766.36
  4. Step 4: Simplify right side
    15,787.98x = 207,442,935.19
  5. Step 5: Solve for x
    x = 207,442,935.19/15,787.98
  6. Step 6: Final answer
    x = 13,139.30

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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.