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Finding the Fourth Proportional to 7,472.40, 10,312.23 and 4,286.59

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Solution

The fourth proportional to 7,472.40, 10,312.23 and 4,286.59 is: 5,915.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.40 : 10,312.23 = 4,286.59 : x
  2. Step 2: Convert to fraction form
    7,472.40/10,312.23 = 4,286.59/x
  3. Step 3: Cross multiply
    7,472.40x = 10,312.23 × 4,286.59
  4. Step 4: Simplify right side
    7,472.40x = 44,204,302.64
  5. Step 5: Solve for x
    x = 44,204,302.64/7,472.40
  6. Step 6: Final answer
    x = 5,915.68

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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.