Home / 17,948.40-24,768.52-9,990.61

Finding the Fourth Proportional to 17,948.40, 24,768.52 and 9,990.61

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Solution

The fourth proportional to 17,948.40, 24,768.52 and 9,990.61 is: 13,786.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,948.40 : 24,768.52 = 9,990.61 : x
  2. Step 2: Convert to fraction form
    17,948.40/24,768.52 = 9,990.61/x
  3. Step 3: Cross multiply
    17,948.40x = 24,768.52 × 9,990.61
  4. Step 4: Simplify right side
    17,948.40x = 247,452,623.60
  5. Step 5: Solve for x
    x = 247,452,623.60/17,948.40
  6. Step 6: Final answer
    x = 13,786.89

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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.