Home / 18,382.40-25,366.98-9,998.92

Finding the Fourth Proportional to 18,382.40, 25,366.98 and 9,998.92

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Solution

The fourth proportional to 18,382.40, 25,366.98 and 9,998.92 is: 13,798.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,382.40 : 25,366.98 = 9,998.92 : x
  2. Step 2: Convert to fraction form
    18,382.40/25,366.98 = 9,998.92/x
  3. Step 3: Cross multiply
    18,382.40x = 25,366.98 × 9,998.92
  4. Step 4: Simplify right side
    18,382.40x = 253,642,403.66
  5. Step 5: Solve for x
    x = 253,642,403.66/18,382.40
  6. Step 6: Final answer
    x = 13,798.11

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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.