Home / 18,998.18-26,218.49-11,446.89

Finding the Fourth Proportional to 18,998.18, 26,218.49 and 11,446.89

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Solution

The fourth proportional to 18,998.18, 26,218.49 and 11,446.89 is: 15,797.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.18 : 26,218.49 = 11,446.89 : x
  2. Step 2: Convert to fraction form
    18,998.18/26,218.49 = 11,446.89/x
  3. Step 3: Cross multiply
    18,998.18x = 26,218.49 × 11,446.89
  4. Step 4: Simplify right side
    18,998.18x = 300,120,113.76
  5. Step 5: Solve for x
    x = 300,120,113.76/18,998.18
  6. Step 6: Final answer
    x = 15,797.31

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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.