Home / 18,938.06-26,131.46-11,382.58

Finding the Fourth Proportional to 18,938.06, 26,131.46 and 11,382.58

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Solution

The fourth proportional to 18,938.06, 26,131.46 and 11,382.58 is: 15,706.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,938.06 : 26,131.46 = 11,382.58 : x
  2. Step 2: Convert to fraction form
    18,938.06/26,131.46 = 11,382.58/x
  3. Step 3: Cross multiply
    18,938.06x = 26,131.46 × 11,382.58
  4. Step 4: Simplify right side
    18,938.06x = 297,443,311.73
  5. Step 5: Solve for x
    x = 297,443,311.73/18,938.06
  6. Step 6: Final answer
    x = 15,706.12

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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.