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Finding the Fourth Proportional to 7,344.76, 10,131.52 and 4,689.18

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Solution

The fourth proportional to 7,344.76, 10,131.52 and 4,689.18 is: 6,468.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344.76 : 10,131.52 = 4,689.18 : x
  2. Step 2: Convert to fraction form
    7,344.76/10,131.52 = 4,689.18/x
  3. Step 3: Cross multiply
    7,344.76x = 10,131.52 × 4,689.18
  4. Step 4: Simplify right side
    7,344.76x = 47,508,520.95
  5. Step 5: Solve for x
    x = 47,508,520.95/7,344.76
  6. Step 6: Final answer
    x = 6,468.36

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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.