Home / 13,593.45-20,391.12-5,272.95

Finding the Fourth Proportional to 13,593.45, 20,391.12 and 5,272.95

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Solution

The fourth proportional to 13,593.45, 20,391.12 and 5,272.95 is: 7,909.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593.45 : 20,391.12 = 5,272.95 : x
  2. Step 2: Convert to fraction form
    13,593.45/20,391.12 = 5,272.95/x
  3. Step 3: Cross multiply
    13,593.45x = 20,391.12 × 5,272.95
  4. Step 4: Simplify right side
    13,593.45x = 107,521,356.20
  5. Step 5: Solve for x
    x = 107,521,356.20/13,593.45
  6. Step 6: Final answer
    x = 7,909.79

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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.