Home / 17,948.12-24,765.45-9,990.14

Finding the Fourth Proportional to 17,948.12, 24,765.45 and 9,990.14

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Solution

The fourth proportional to 17,948.12, 24,765.45 and 9,990.14 is: 13,784.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,948.12 : 24,765.45 = 9,990.14 : x
  2. Step 2: Convert to fraction form
    17,948.12/24,765.45 = 9,990.14/x
  3. Step 3: Cross multiply
    17,948.12x = 24,765.45 × 9,990.14
  4. Step 4: Simplify right side
    17,948.12x = 247,410,312.66
  5. Step 5: Solve for x
    x = 247,410,312.66/17,948.12
  6. Step 6: Final answer
    x = 13,784.75

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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.