Home / 10,306.64-15,456.30-3,731.12

Finding the Fourth Proportional to 10,306.64, 15,456.30 and 3,731.12

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Solution

The fourth proportional to 10,306.64, 15,456.30 and 3,731.12 is: 5,595.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.64 : 15,456.30 = 3,731.12 : x
  2. Step 2: Convert to fraction form
    10,306.64/15,456.30 = 3,731.12/x
  3. Step 3: Cross multiply
    10,306.64x = 15,456.30 × 3,731.12
  4. Step 4: Simplify right side
    10,306.64x = 57,669,310.06
  5. Step 5: Solve for x
    x = 57,669,310.06/10,306.64
  6. Step 6: Final answer
    x = 5,595.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.