Home / 19,989.74-27,577.15-11,489.92

Finding the Fourth Proportional to 19,989.74, 27,577.15 and 11,489.92

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Solution

The fourth proportional to 19,989.74, 27,577.15 and 11,489.92 is: 15,851.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989.74 : 27,577.15 = 11,489.92 : x
  2. Step 2: Convert to fraction form
    19,989.74/27,577.15 = 11,489.92/x
  3. Step 3: Cross multiply
    19,989.74x = 27,577.15 × 11,489.92
  4. Step 4: Simplify right side
    19,989.74x = 316,859,149.66
  5. Step 5: Solve for x
    x = 316,859,149.66/19,989.74
  6. Step 6: Final answer
    x = 15,851.09

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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.