Home / 14,147.38-21,221.10-3,759.10

Finding the Fourth Proportional to 14,147.38, 21,221.10 and 3,759.10

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Solution

The fourth proportional to 14,147.38, 21,221.10 and 3,759.10 is: 5,638.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.38 : 21,221.10 = 3,759.10 : x
  2. Step 2: Convert to fraction form
    14,147.38/21,221.10 = 3,759.10/x
  3. Step 3: Cross multiply
    14,147.38x = 21,221.10 × 3,759.10
  4. Step 4: Simplify right side
    14,147.38x = 79,772,237.01
  5. Step 5: Solve for x
    x = 79,772,237.01/14,147.38
  6. Step 6: Final answer
    x = 5,638.66

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Double scale
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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.