Home / 12,932.75-19,400.25-3,572.78

Finding the Fourth Proportional to 12,932.75, 19,400.25 and 3,572.78

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Solution

The fourth proportional to 12,932.75, 19,400.25 and 3,572.78 is: 5,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,932.75 : 19,400.25 = 3,572.78 : x
  2. Step 2: Convert to fraction form
    12,932.75/19,400.25 = 3,572.78/x
  3. Step 3: Cross multiply
    12,932.75x = 19,400.25 × 3,572.78
  4. Step 4: Simplify right side
    12,932.75x = 69,312,825.20
  5. Step 5: Solve for x
    x = 69,312,825.20/12,932.75
  6. Step 6: Final answer
    x = 5,359.48

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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.