Home / 10,073.31-15,120.30-6,731.46

Finding the Fourth Proportional to 10,073.31, 15,120.30 and 6,731.46

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Solution

The fourth proportional to 10,073.31, 15,120.30 and 6,731.46 is: 10,104.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,073.31 : 15,120.30 = 6,731.46 : x
  2. Step 2: Convert to fraction form
    10,073.31/15,120.30 = 6,731.46/x
  3. Step 3: Cross multiply
    10,073.31x = 15,120.30 × 6,731.46
  4. Step 4: Simplify right side
    10,073.31x = 101,781,694.64
  5. Step 5: Solve for x
    x = 101,781,694.64/10,073.31
  6. Step 6: Final answer
    x = 10,104.10

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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.