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Finding the Fourth Proportional to 10,585.64, 15,881.88 and 8,755.52

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Solution

The fourth proportional to 10,585.64, 15,881.88 and 8,755.52 is: 13,136.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,585.64 : 15,881.88 = 8,755.52 : x
  2. Step 2: Convert to fraction form
    10,585.64/15,881.88 = 8,755.52/x
  3. Step 3: Cross multiply
    10,585.64x = 15,881.88 × 8,755.52
  4. Step 4: Simplify right side
    10,585.64x = 139,054,117.98
  5. Step 5: Solve for x
    x = 139,054,117.98/10,585.64
  6. Step 6: Final answer
    x = 13,136.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.