Home / 18,191.97-27,291.26-7,518.35

Finding the Fourth Proportional to 18,191.97, 27,291.26 and 7,518.35

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Solution

The fourth proportional to 18,191.97, 27,291.26 and 7,518.35 is: 11,278.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191.97 : 27,291.26 = 7,518.35 : x
  2. Step 2: Convert to fraction form
    18,191.97/27,291.26 = 7,518.35/x
  3. Step 3: Cross multiply
    18,191.97x = 27,291.26 × 7,518.35
  4. Step 4: Simplify right side
    18,191.97x = 205,185,070.57
  5. Step 5: Solve for x
    x = 205,185,070.57/18,191.97
  6. Step 6: Final answer
    x = 11,278.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.