Home / 11,031.90-15,221.57-6,251.43

Finding the Fourth Proportional to 11,031.90, 15,221.57 and 6,251.43

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Solution

The fourth proportional to 11,031.90, 15,221.57 and 6,251.43 is: 8,625.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.90 : 15,221.57 = 6,251.43 : x
  2. Step 2: Convert to fraction form
    11,031.90/15,221.57 = 6,251.43/x
  3. Step 3: Cross multiply
    11,031.90x = 15,221.57 × 6,251.43
  4. Step 4: Simplify right side
    11,031.90x = 95,156,554.71
  5. Step 5: Solve for x
    x = 95,156,554.71/11,031.90
  6. Step 6: Final answer
    x = 8,625.58

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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.