Home / 10,040.10-15,031.35-9,003.30

Finding the Fourth Proportional to 10,040.10, 15,031.35 and 9,003.30

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Solution

The fourth proportional to 10,040.10, 15,031.35 and 9,003.30 is: 13,479.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,040.10 : 15,031.35 = 9,003.30 : x
  2. Step 2: Convert to fraction form
    10,040.10/15,031.35 = 9,003.30/x
  3. Step 3: Cross multiply
    10,040.10x = 15,031.35 × 9,003.30
  4. Step 4: Simplify right side
    10,040.10x = 135,331,753.46
  5. Step 5: Solve for x
    x = 135,331,753.46/10,040.10
  6. Step 6: Final answer
    x = 13,479.12

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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.