Home / 18,380.13-25,364.77-9,996.81

Finding the Fourth Proportional to 18,380.13, 25,364.77 and 9,996.81

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Solution

The fourth proportional to 18,380.13, 25,364.77 and 9,996.81 is: 13,795.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380.13 : 25,364.77 = 9,996.81 : x
  2. Step 2: Convert to fraction form
    18,380.13/25,364.77 = 9,996.81/x
  3. Step 3: Cross multiply
    18,380.13x = 25,364.77 × 9,996.81
  4. Step 4: Simplify right side
    18,380.13x = 253,566,786.38
  5. Step 5: Solve for x
    x = 253,566,786.38/18,380.13
  6. Step 6: Final answer
    x = 13,795.70

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Half scale
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Double scale
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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.