Home / 18,612.95-25,685.85-10,229.45

Finding the Fourth Proportional to 18,612.95, 25,685.85 and 10,229.45

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Solution

The fourth proportional to 18,612.95, 25,685.85 and 10,229.45 is: 14,116.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.95 : 25,685.85 = 10,229.45 : x
  2. Step 2: Convert to fraction form
    18,612.95/25,685.85 = 10,229.45/x
  3. Step 3: Cross multiply
    18,612.95x = 25,685.85 × 10,229.45
  4. Step 4: Simplify right side
    18,612.95x = 262,751,989.85
  5. Step 5: Solve for x
    x = 262,751,989.85/18,612.95
  6. Step 6: Final answer
    x = 14,116.63

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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.