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Finding the Fourth Proportional to 15,757.17, 21,744.04 and 9,788.73

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Solution

The fourth proportional to 15,757.17, 21,744.04 and 9,788.73 is: 13,507.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,757.17 : 21,744.04 = 9,788.73 : x
  2. Step 2: Convert to fraction form
    15,757.17/21,744.04 = 9,788.73/x
  3. Step 3: Cross multiply
    15,757.17x = 21,744.04 × 9,788.73
  4. Step 4: Simplify right side
    15,757.17x = 212,846,487.73
  5. Step 5: Solve for x
    x = 212,846,487.73/15,757.17
  6. Step 6: Final answer
    x = 13,507.91

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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.