Home / 18,419.06-27,610.71-7,891.83

Finding the Fourth Proportional to 18,419.06, 27,610.71 and 7,891.83

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Solution

The fourth proportional to 18,419.06, 27,610.71 and 7,891.83 is: 11,830.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.06 : 27,610.71 = 7,891.83 : x
  2. Step 2: Convert to fraction form
    18,419.06/27,610.71 = 7,891.83/x
  3. Step 3: Cross multiply
    18,419.06x = 27,610.71 × 7,891.83
  4. Step 4: Simplify right side
    18,419.06x = 217,898,999.90
  5. Step 5: Solve for x
    x = 217,898,999.90/18,419.06
  6. Step 6: Final answer
    x = 11,830.08

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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.