Home / 13,920.87-20,882.60-4,560.96

Finding the Fourth Proportional to 13,920.87, 20,882.60 and 4,560.96

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Solution

The fourth proportional to 13,920.87, 20,882.60 and 4,560.96 is: 6,841.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920.87 : 20,882.60 = 4,560.96 : x
  2. Step 2: Convert to fraction form
    13,920.87/20,882.60 = 4,560.96/x
  3. Step 3: Cross multiply
    13,920.87x = 20,882.60 × 4,560.96
  4. Step 4: Simplify right side
    13,920.87x = 95,244,703.30
  5. Step 5: Solve for x
    x = 95,244,703.30/13,920.87
  6. Step 6: Final answer
    x = 6,841.86

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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.