Home / 12,691.44-19,041.05-5,677.36

Finding the Fourth Proportional to 12,691.44, 19,041.05 and 5,677.36

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Solution

The fourth proportional to 12,691.44, 19,041.05 and 5,677.36 is: 8,517.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691.44 : 19,041.05 = 5,677.36 : x
  2. Step 2: Convert to fraction form
    12,691.44/19,041.05 = 5,677.36/x
  3. Step 3: Cross multiply
    12,691.44x = 19,041.05 × 5,677.36
  4. Step 4: Simplify right side
    12,691.44x = 108,102,862.22
  5. Step 5: Solve for x
    x = 108,102,862.22/12,691.44
  6. Step 6: Final answer
    x = 8,517.78

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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.