Home / 12,352.20-17,031.72-8,375.88

Finding the Fourth Proportional to 12,352.20, 17,031.72 and 8,375.88

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Solution

The fourth proportional to 12,352.20, 17,031.72 and 8,375.88 is: 11,549.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,352.20 : 17,031.72 = 8,375.88 : x
  2. Step 2: Convert to fraction form
    12,352.20/17,031.72 = 8,375.88/x
  3. Step 3: Cross multiply
    12,352.20x = 17,031.72 × 8,375.88
  4. Step 4: Simplify right side
    12,352.20x = 142,655,642.91
  5. Step 5: Solve for x
    x = 142,655,642.91/12,352.20
  6. Step 6: Final answer
    x = 11,549.01

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1.5x scale

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.