Home / 18,613.12-25,685.78-10,229.44

Finding the Fourth Proportional to 18,613.12, 25,685.78 and 10,229.44

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Solution

The fourth proportional to 18,613.12, 25,685.78 and 10,229.44 is: 14,116.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.12 : 25,685.78 = 10,229.44 : x
  2. Step 2: Convert to fraction form
    18,613.12/25,685.78 = 10,229.44/x
  3. Step 3: Cross multiply
    18,613.12x = 25,685.78 × 10,229.44
  4. Step 4: Simplify right side
    18,613.12x = 262,751,145.36
  5. Step 5: Solve for x
    x = 262,751,145.36/18,613.12
  6. Step 6: Final answer
    x = 14,116.45

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.