Home / 18,126.91-25,034.12-12,476.25

Finding the Fourth Proportional to 18,126.91, 25,034.12 and 12,476.25

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Solution

The fourth proportional to 18,126.91, 25,034.12 and 12,476.25 is: 17,230.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126.91 : 25,034.12 = 12,476.25 : x
  2. Step 2: Convert to fraction form
    18,126.91/25,034.12 = 12,476.25/x
  3. Step 3: Cross multiply
    18,126.91x = 25,034.12 × 12,476.25
  4. Step 4: Simplify right side
    18,126.91x = 312,331,939.65
  5. Step 5: Solve for x
    x = 312,331,939.65/18,126.91
  6. Step 6: Final answer
    x = 17,230.29

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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.