Home / 16,489.47-24,739.95-11,990.73

Finding the Fourth Proportional to 16,489.47, 24,739.95 and 11,990.73

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Solution

The fourth proportional to 16,489.47, 24,739.95 and 11,990.73 is: 17,990.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,489.47 : 24,739.95 = 11,990.73 : x
  2. Step 2: Convert to fraction form
    16,489.47/24,739.95 = 11,990.73/x
  3. Step 3: Cross multiply
    16,489.47x = 24,739.95 × 11,990.73
  4. Step 4: Simplify right side
    16,489.47x = 296,650,060.66
  5. Step 5: Solve for x
    x = 296,650,060.66/16,489.47
  6. Step 6: Final answer
    x = 17,990.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.