Home / 17,920.42-26,869.69-7,387.18

Finding the Fourth Proportional to 17,920.42, 26,869.69 and 7,387.18

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Solution

The fourth proportional to 17,920.42, 26,869.69 and 7,387.18 is: 11,076.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.42 : 26,869.69 = 7,387.18 : x
  2. Step 2: Convert to fraction form
    17,920.42/26,869.69 = 7,387.18/x
  3. Step 3: Cross multiply
    17,920.42x = 26,869.69 × 7,387.18
  4. Step 4: Simplify right side
    17,920.42x = 198,491,236.57
  5. Step 5: Solve for x
    x = 198,491,236.57/17,920.42
  6. Step 6: Final answer
    x = 11,076.26

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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.