Home / 12,691.17-19,037.25-4,371.12

Finding the Fourth Proportional to 12,691.17, 19,037.25 and 4,371.12

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Solution

The fourth proportional to 12,691.17, 19,037.25 and 4,371.12 is: 6,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691.17 : 19,037.25 = 4,371.12 : x
  2. Step 2: Convert to fraction form
    12,691.17/19,037.25 = 4,371.12/x
  3. Step 3: Cross multiply
    12,691.17x = 19,037.25 × 4,371.12
  4. Step 4: Simplify right side
    12,691.17x = 83,214,104.22
  5. Step 5: Solve for x
    x = 83,214,104.22/12,691.17
  6. Step 6: Final answer
    x = 6,556.85

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1.5x scale

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.