Home / 15,103.82-22,553.94-12,335.90

Finding the Fourth Proportional to 15,103.82, 22,553.94 and 12,335.90

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Solution

The fourth proportional to 15,103.82, 22,553.94 and 12,335.90 is: 18,420.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,103.82 : 22,553.94 = 12,335.90 : x
  2. Step 2: Convert to fraction form
    15,103.82/22,553.94 = 12,335.90/x
  3. Step 3: Cross multiply
    15,103.82x = 22,553.94 × 12,335.90
  4. Step 4: Simplify right side
    15,103.82x = 278,223,081.94
  5. Step 5: Solve for x
    x = 278,223,081.94/15,103.82
  6. Step 6: Final answer
    x = 18,420.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.