Home / 16,791.88-25,139.17-12,649.33

Finding the Fourth Proportional to 16,791.88, 25,139.17 and 12,649.33

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Solution

The fourth proportional to 16,791.88, 25,139.17 and 12,649.33 is: 18,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,791.88 : 25,139.17 = 12,649.33 : x
  2. Step 2: Convert to fraction form
    16,791.88/25,139.17 = 12,649.33/x
  3. Step 3: Cross multiply
    16,791.88x = 25,139.17 × 12,649.33
  4. Step 4: Simplify right side
    16,791.88x = 317,993,657.26
  5. Step 5: Solve for x
    x = 317,993,657.26/16,791.88
  6. Step 6: Final answer
    x = 18,937.35

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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.