Home / 18,191.97-27,289.11-5,712.48

Finding the Fourth Proportional to 18,191.97, 27,289.11 and 5,712.48

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Solution

The fourth proportional to 18,191.97, 27,289.11 and 5,712.48 is: 8,569.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191.97 : 27,289.11 = 5,712.48 : x
  2. Step 2: Convert to fraction form
    18,191.97/27,289.11 = 5,712.48/x
  3. Step 3: Cross multiply
    18,191.97x = 27,289.11 × 5,712.48
  4. Step 4: Simplify right side
    18,191.97x = 155,888,495.09
  5. Step 5: Solve for x
    x = 155,888,495.09/18,191.97
  6. Step 6: Final answer
    x = 8,569.08

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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.