Home / 18,278.92-25,225.11-10,725.38

Finding the Fourth Proportional to 18,278.92, 25,225.11 and 10,725.38

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Solution

The fourth proportional to 18,278.92, 25,225.11 and 10,725.38 is: 14,801.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.92 : 25,225.11 = 10,725.38 : x
  2. Step 2: Convert to fraction form
    18,278.92/25,225.11 = 10,725.38/x
  3. Step 3: Cross multiply
    18,278.92x = 25,225.11 × 10,725.38
  4. Step 4: Simplify right side
    18,278.92x = 270,548,890.29
  5. Step 5: Solve for x
    x = 270,548,890.29/18,278.92
  6. Step 6: Final answer
    x = 14,801.14

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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.