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Finding the Fourth Proportional to 7,472.29, 10,311.36 and 4,114.45

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Solution

The fourth proportional to 7,472.29, 10,311.36 and 4,114.45 is: 5,677.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.29 : 10,311.36 = 4,114.45 : x
  2. Step 2: Convert to fraction form
    7,472.29/10,311.36 = 4,114.45/x
  3. Step 3: Cross multiply
    7,472.29x = 10,311.36 × 4,114.45
  4. Step 4: Simplify right side
    7,472.29x = 42,425,575.15
  5. Step 5: Solve for x
    x = 42,425,575.15/7,472.29
  6. Step 6: Final answer
    x = 5,677.72

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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.