Home / 10,871.31-15,002.19-6,091.20

Finding the Fourth Proportional to 10,871.31, 15,002.19 and 6,091.20

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Solution

The fourth proportional to 10,871.31, 15,002.19 and 6,091.20 is: 8,405.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.31 : 15,002.19 = 6,091.20 : x
  2. Step 2: Convert to fraction form
    10,871.31/15,002.19 = 6,091.20/x
  3. Step 3: Cross multiply
    10,871.31x = 15,002.19 × 6,091.20
  4. Step 4: Simplify right side
    10,871.31x = 91,381,306.10
  5. Step 5: Solve for x
    x = 91,381,306.10/10,871.31
  6. Step 6: Final answer
    x = 8,405.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.