Home / 18,974.40-26,190.36-11,020.20

Finding the Fourth Proportional to 18,974.40, 26,190.36 and 11,020.20

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Solution

The fourth proportional to 18,974.40, 26,190.36 and 11,020.20 is: 15,211.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.40 : 26,190.36 = 11,020.20 : x
  2. Step 2: Convert to fraction form
    18,974.40/26,190.36 = 11,020.20/x
  3. Step 3: Cross multiply
    18,974.40x = 26,190.36 × 11,020.20
  4. Step 4: Simplify right side
    18,974.40x = 288,623,005.27
  5. Step 5: Solve for x
    x = 288,623,005.27/18,974.40
  6. Step 6: Final answer
    x = 15,211.18

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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.