Home / 18,387.82-27,570.61-8,254.36

Finding the Fourth Proportional to 18,387.82, 27,570.61 and 8,254.36

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Solution

The fourth proportional to 18,387.82, 27,570.61 and 8,254.36 is: 12,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.82 : 27,570.61 = 8,254.36 : x
  2. Step 2: Convert to fraction form
    18,387.82/27,570.61 = 8,254.36/x
  3. Step 3: Cross multiply
    18,387.82x = 27,570.61 × 8,254.36
  4. Step 4: Simplify right side
    18,387.82x = 227,577,740.36
  5. Step 5: Solve for x
    x = 227,577,740.36/18,387.82
  6. Step 6: Final answer
    x = 12,376.55

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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.