Home / 19,514.16-26,929.71-11,131.20

Finding the Fourth Proportional to 19,514.16, 26,929.71 and 11,131.20

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Solution

The fourth proportional to 19,514.16, 26,929.71 and 11,131.20 is: 15,361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,514.16 : 26,929.71 = 11,131.20 : x
  2. Step 2: Convert to fraction form
    19,514.16/26,929.71 = 11,131.20/x
  3. Step 3: Cross multiply
    19,514.16x = 26,929.71 × 11,131.20
  4. Step 4: Simplify right side
    19,514.16x = 299,759,987.95
  5. Step 5: Solve for x
    x = 299,759,987.95/19,514.16
  6. Step 6: Final answer
    x = 15,361.15

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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.