Home / 19,754.88-27,261.12-11,371.20

Finding the Fourth Proportional to 19,754.88, 27,261.12 and 11,371.20

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Solution

The fourth proportional to 19,754.88, 27,261.12 and 11,371.20 is: 15,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,754.88 : 27,261.12 = 11,371.20 : x
  2. Step 2: Convert to fraction form
    19,754.88/27,261.12 = 11,371.20/x
  3. Step 3: Cross multiply
    19,754.88x = 27,261.12 × 11,371.20
  4. Step 4: Simplify right side
    19,754.88x = 309,991,647.74
  5. Step 5: Solve for x
    x = 309,991,647.74/19,754.88
  6. Step 6: Final answer
    x = 15,691.90

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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.