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Finding the Fourth Proportional to 11,149.56, 15,387.96 and 6,901.98

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Solution

The fourth proportional to 11,149.56, 15,387.96 and 6,901.98 is: 9,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,149.56 : 15,387.96 = 6,901.98 : x
  2. Step 2: Convert to fraction form
    11,149.56/15,387.96 = 6,901.98/x
  3. Step 3: Cross multiply
    11,149.56x = 15,387.96 × 6,901.98
  4. Step 4: Simplify right side
    11,149.56x = 106,207,392.16
  5. Step 5: Solve for x
    x = 106,207,392.16/11,149.56
  6. Step 6: Final answer
    x = 9,525.70

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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.