Home / 13,835.70-20,753.55-3,974.40

Finding the Fourth Proportional to 13,835.70, 20,753.55 and 3,974.40

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Solution

The fourth proportional to 13,835.70, 20,753.55 and 3,974.40 is: 5,961.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,835.70 : 20,753.55 = 3,974.40 : x
  2. Step 2: Convert to fraction form
    13,835.70/20,753.55 = 3,974.40/x
  3. Step 3: Cross multiply
    13,835.70x = 20,753.55 × 3,974.40
  4. Step 4: Simplify right side
    13,835.70x = 82,482,909.12
  5. Step 5: Solve for x
    x = 82,482,909.12/13,835.70
  6. Step 6: Final answer
    x = 5,961.60

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Similar ratio
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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.