Home / 19,079.36-26,331.19-11,121.42

Finding the Fourth Proportional to 19,079.36, 26,331.19 and 11,121.42

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Solution

The fourth proportional to 19,079.36, 26,331.19 and 11,121.42 is: 15,348.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,079.36 : 26,331.19 = 11,121.42 : x
  2. Step 2: Convert to fraction form
    19,079.36/26,331.19 = 11,121.42/x
  3. Step 3: Cross multiply
    19,079.36x = 26,331.19 × 11,121.42
  4. Step 4: Simplify right side
    19,079.36x = 292,840,195.29
  5. Step 5: Solve for x
    x = 292,840,195.29/19,079.36
  6. Step 6: Final answer
    x = 15,348.53

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Double scale
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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.