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Finding the Fourth Proportional to 15,592.54, 21,517.73 and 8,878.17

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Solution

The fourth proportional to 15,592.54, 21,517.73 and 8,878.17 is: 12,251.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,592.54 : 21,517.73 = 8,878.17 : x
  2. Step 2: Convert to fraction form
    15,592.54/21,517.73 = 8,878.17/x
  3. Step 3: Cross multiply
    15,592.54x = 21,517.73 × 8,878.17
  4. Step 4: Simplify right side
    15,592.54x = 191,038,020.56
  5. Step 5: Solve for x
    x = 191,038,020.56/15,592.54
  6. Step 6: Final answer
    x = 12,251.89

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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.