Home / 18,490.87-25,517.40-9,992.96

Finding the Fourth Proportional to 18,490.87, 25,517.40 and 9,992.96

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Solution

The fourth proportional to 18,490.87, 25,517.40 and 9,992.96 is: 13,790.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.87 : 25,517.40 = 9,992.96 : x
  2. Step 2: Convert to fraction form
    18,490.87/25,517.40 = 9,992.96/x
  3. Step 3: Cross multiply
    18,490.87x = 25,517.40 × 9,992.96
  4. Step 4: Simplify right side
    18,490.87x = 254,994,357.50
  5. Step 5: Solve for x
    x = 254,994,357.50/18,490.87
  6. Step 6: Final answer
    x = 13,790.28

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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.