Home / 14,489.68-19,995.40-8,521.73

Finding the Fourth Proportional to 14,489.68, 19,995.40 and 8,521.73

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Solution

The fourth proportional to 14,489.68, 19,995.40 and 8,521.73 is: 11,759.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,489.68 : 19,995.40 = 8,521.73 : x
  2. Step 2: Convert to fraction form
    14,489.68/19,995.40 = 8,521.73/x
  3. Step 3: Cross multiply
    14,489.68x = 19,995.40 × 8,521.73
  4. Step 4: Simplify right side
    14,489.68x = 170,395,400.04
  5. Step 5: Solve for x
    x = 170,395,400.04/14,489.68
  6. Step 6: Final answer
    x = 11,759.78

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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.