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Finding the Fourth Proportional to 15,672, 21,626.62 and 8,598.27

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Solution

The fourth proportional to 15,672, 21,626.62 and 8,598.27 is: 11,865.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672 : 21,626.62 = 8,598.27 : x
  2. Step 2: Convert to fraction form
    15,672/21,626.62 = 8,598.27/x
  3. Step 3: Cross multiply
    15,672x = 21,626.62 × 8,598.27
  4. Step 4: Simplify right side
    15,672x = 185,951,517.95
  5. Step 5: Solve for x
    x = 185,951,517.95/15,672
  6. Step 6: Final answer
    x = 11,865.21

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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.