Home / 13,387.58-20,073.26-5,990.66

Finding the Fourth Proportional to 13,387.58, 20,073.26 and 5,990.66

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Solution

The fourth proportional to 13,387.58, 20,073.26 and 5,990.66 is: 8,982.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.58 : 20,073.26 = 5,990.66 : x
  2. Step 2: Convert to fraction form
    13,387.58/20,073.26 = 5,990.66/x
  3. Step 3: Cross multiply
    13,387.58x = 20,073.26 × 5,990.66
  4. Step 4: Simplify right side
    13,387.58x = 120,251,945.43
  5. Step 5: Solve for x
    x = 120,251,945.43/13,387.58
  6. Step 6: Final answer
    x = 8,982.35

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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.