Home / 15,612.82-23,399.10-13,603.37

Finding the Fourth Proportional to 15,612.82, 23,399.10 and 13,603.37

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Solution

The fourth proportional to 15,612.82, 23,399.10 and 13,603.37 is: 20,387.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,612.82 : 23,399.10 = 13,603.37 : x
  2. Step 2: Convert to fraction form
    15,612.82/23,399.10 = 13,603.37/x
  3. Step 3: Cross multiply
    15,612.82x = 23,399.10 × 13,603.37
  4. Step 4: Simplify right side
    15,612.82x = 318,306,497.97
  5. Step 5: Solve for x
    x = 318,306,497.97/15,612.82
  6. Step 6: Final answer
    x = 20,387.51

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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.