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Finding the Fourth Proportional to 10,999.60, 16,499.40 and 9,732.40

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Solution

The fourth proportional to 10,999.60, 16,499.40 and 9,732.40 is: 14,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.60 : 16,499.40 = 9,732.40 : x
  2. Step 2: Convert to fraction form
    10,999.60/16,499.40 = 9,732.40/x
  3. Step 3: Cross multiply
    10,999.60x = 16,499.40 × 9,732.40
  4. Step 4: Simplify right side
    10,999.60x = 160,578,760.56
  5. Step 5: Solve for x
    x = 160,578,760.56/10,999.60
  6. Step 6: Final answer
    x = 14,598.60

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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.