Home / 19,186.92-26,478-11,122.13

Finding the Fourth Proportional to 19,186.92, 26,478 and 11,122.13

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Solution

The fourth proportional to 19,186.92, 26,478 and 11,122.13 is: 15,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,186.92 : 26,478 = 11,122.13 : x
  2. Step 2: Convert to fraction form
    19,186.92/26,478 = 11,122.13/x
  3. Step 3: Cross multiply
    19,186.92x = 26,478 × 11,122.13
  4. Step 4: Simplify right side
    19,186.92x = 294,491,625.75
  5. Step 5: Solve for x
    x = 294,491,625.75/19,186.92
  6. Step 6: Final answer
    x = 15,348.56

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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.