Home / 22,918.78-34,378.20-6,278.96

Finding the Fourth Proportional to 22,918.78, 34,378.20 and 6,278.96

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Solution

The fourth proportional to 22,918.78, 34,378.20 and 6,278.96 is: 9,418.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,918.78 : 34,378.20 = 6,278.96 : x
  2. Step 2: Convert to fraction form
    22,918.78/34,378.20 = 6,278.96/x
  3. Step 3: Cross multiply
    22,918.78x = 34,378.20 × 6,278.96
  4. Step 4: Simplify right side
    22,918.78x = 215,859,139.39
  5. Step 5: Solve for x
    x = 215,859,139.39/22,918.78
  6. Step 6: Final answer
    x = 9,418.44

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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.