Home / 42,651.12-63,976.68-11,486.36

Finding the Fourth Proportional to 42,651.12, 63,976.68 and 11,486.36

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Solution

The fourth proportional to 42,651.12, 63,976.68 and 11,486.36 is: 17,229.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,651.12 : 63,976.68 = 11,486.36 : x
  2. Step 2: Convert to fraction form
    42,651.12/63,976.68 = 11,486.36/x
  3. Step 3: Cross multiply
    42,651.12x = 63,976.68 × 11,486.36
  4. Step 4: Simplify right side
    42,651.12x = 734,859,178.08
  5. Step 5: Solve for x
    x = 734,859,178.08/42,651.12
  6. Step 6: Final answer
    x = 17,229.54

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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.