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Finding the Fourth Proportional to 15,472.46, 21,363.10 and 9,512.12

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Solution

The fourth proportional to 15,472.46, 21,363.10 and 9,512.12 is: 13,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,472.46 : 21,363.10 = 9,512.12 : x
  2. Step 2: Convert to fraction form
    15,472.46/21,363.10 = 9,512.12/x
  3. Step 3: Cross multiply
    15,472.46x = 21,363.10 × 9,512.12
  4. Step 4: Simplify right side
    15,472.46x = 203,208,370.77
  5. Step 5: Solve for x
    x = 203,208,370.77/15,472.46
  6. Step 6: Final answer
    x = 13,133.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.