Home / 25,127.36-37,691.84-12,640.56

Finding the Fourth Proportional to 25,127.36, 37,691.84 and 12,640.56

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Solution

The fourth proportional to 25,127.36, 37,691.84 and 12,640.56 is: 18,961.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,127.36 : 37,691.84 = 12,640.56 : x
  2. Step 2: Convert to fraction form
    25,127.36/37,691.84 = 12,640.56/x
  3. Step 3: Cross multiply
    25,127.36x = 37,691.84 × 12,640.56
  4. Step 4: Simplify right side
    25,127.36x = 476,445,965.03
  5. Step 5: Solve for x
    x = 476,445,965.03/25,127.36
  6. Step 6: Final answer
    x = 18,961.24

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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.