Home / 19,514.66-26,930.40-11,131.70

Finding the Fourth Proportional to 19,514.66, 26,930.40 and 11,131.70

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Solution

The fourth proportional to 19,514.66, 26,930.40 and 11,131.70 is: 15,361.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,514.66 : 26,930.40 = 11,131.70 : x
  2. Step 2: Convert to fraction form
    19,514.66/26,930.40 = 11,131.70/x
  3. Step 3: Cross multiply
    19,514.66x = 26,930.40 × 11,131.70
  4. Step 4: Simplify right side
    19,514.66x = 299,781,133.68
  5. Step 5: Solve for x
    x = 299,781,133.68/19,514.66
  6. Step 6: Final answer
    x = 15,361.84

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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.