Home / 18,243.86-25,197.30-12,265.15

Finding the Fourth Proportional to 18,243.86, 25,197.30 and 12,265.15

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Solution

The fourth proportional to 18,243.86, 25,197.30 and 12,265.15 is: 16,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.86 : 25,197.30 = 12,265.15 : x
  2. Step 2: Convert to fraction form
    18,243.86/25,197.30 = 12,265.15/x
  3. Step 3: Cross multiply
    18,243.86x = 25,197.30 × 12,265.15
  4. Step 4: Simplify right side
    18,243.86x = 309,048,602.77
  5. Step 5: Solve for x
    x = 309,048,602.77/18,243.86
  6. Step 6: Final answer
    x = 16,939.87

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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.