Home / 12,520.44-18,780.66-10,177.65

Finding the Fourth Proportional to 12,520.44, 18,780.66 and 10,177.65

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Solution

The fourth proportional to 12,520.44, 18,780.66 and 10,177.65 is: 15,266.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.44 : 18,780.66 = 10,177.65 : x
  2. Step 2: Convert to fraction form
    12,520.44/18,780.66 = 10,177.65/x
  3. Step 3: Cross multiply
    12,520.44x = 18,780.66 × 10,177.65
  4. Step 4: Simplify right side
    12,520.44x = 191,142,984.25
  5. Step 5: Solve for x
    x = 191,142,984.25/12,520.44
  6. Step 6: Final answer
    x = 15,266.48

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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.