Home / 17,948.55-24,769.49-9,990.30

Finding the Fourth Proportional to 17,948.55, 24,769.49 and 9,990.30

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Solution

The fourth proportional to 17,948.55, 24,769.49 and 9,990.30 is: 13,786.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,948.55 : 24,769.49 = 9,990.30 : x
  2. Step 2: Convert to fraction form
    17,948.55/24,769.49 = 9,990.30/x
  3. Step 3: Cross multiply
    17,948.55x = 24,769.49 × 9,990.30
  4. Step 4: Simplify right side
    17,948.55x = 247,454,586.00
  5. Step 5: Solve for x
    x = 247,454,586.00/17,948.55
  6. Step 6: Final answer
    x = 13,786.88

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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.