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Finding the Fourth Proportional to 11,372.64, 15,694.56 and 6,657.12

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Solution

The fourth proportional to 11,372.64, 15,694.56 and 6,657.12 is: 9,187.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,372.64 : 15,694.56 = 6,657.12 : x
  2. Step 2: Convert to fraction form
    11,372.64/15,694.56 = 6,657.12/x
  3. Step 3: Cross multiply
    11,372.64x = 15,694.56 × 6,657.12
  4. Step 4: Simplify right side
    11,372.64x = 104,480,569.27
  5. Step 5: Solve for x
    x = 104,480,569.27/11,372.64
  6. Step 6: Final answer
    x = 9,187.01

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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.