Home / 13,478.70-20,218.65-4,593.90

Finding the Fourth Proportional to 13,478.70, 20,218.65 and 4,593.90

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Solution

The fourth proportional to 13,478.70, 20,218.65 and 4,593.90 is: 6,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.70 : 20,218.65 = 4,593.90 : x
  2. Step 2: Convert to fraction form
    13,478.70/20,218.65 = 4,593.90/x
  3. Step 3: Cross multiply
    13,478.70x = 20,218.65 × 4,593.90
  4. Step 4: Simplify right side
    13,478.70x = 92,882,456.24
  5. Step 5: Solve for x
    x = 92,882,456.24/13,478.70
  6. Step 6: Final answer
    x = 6,891.05

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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.