Home / 18,278.38-25,230.30-12,963.97

Finding the Fourth Proportional to 18,278.38, 25,230.30 and 12,963.97

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Solution

The fourth proportional to 18,278.38, 25,230.30 and 12,963.97 is: 17,894.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.38 : 25,230.30 = 12,963.97 : x
  2. Step 2: Convert to fraction form
    18,278.38/25,230.30 = 12,963.97/x
  3. Step 3: Cross multiply
    18,278.38x = 25,230.30 × 12,963.97
  4. Step 4: Simplify right side
    18,278.38x = 327,084,835.21
  5. Step 5: Solve for x
    x = 327,084,835.21/18,278.38
  6. Step 6: Final answer
    x = 17,894.63

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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.