Home / 17,125.12-25,691.76-5,438.32

Finding the Fourth Proportional to 17,125.12, 25,691.76 and 5,438.32

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Solution

The fourth proportional to 17,125.12, 25,691.76 and 5,438.32 is: 8,158.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,125.12 : 25,691.76 = 5,438.32 : x
  2. Step 2: Convert to fraction form
    17,125.12/25,691.76 = 5,438.32/x
  3. Step 3: Cross multiply
    17,125.12x = 25,691.76 × 5,438.32
  4. Step 4: Simplify right side
    17,125.12x = 139,720,012.24
  5. Step 5: Solve for x
    x = 139,720,012.24/17,125.12
  6. Step 6: Final answer
    x = 8,158.78

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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.