Home / 18,187.40-27,279.97-8,706.45

Finding the Fourth Proportional to 18,187.40, 27,279.97 and 8,706.45

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Solution

The fourth proportional to 18,187.40, 27,279.97 and 8,706.45 is: 13,059.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.40 : 27,279.97 = 8,706.45 : x
  2. Step 2: Convert to fraction form
    18,187.40/27,279.97 = 8,706.45/x
  3. Step 3: Cross multiply
    18,187.40x = 27,279.97 × 8,706.45
  4. Step 4: Simplify right side
    18,187.40x = 237,511,673.04
  5. Step 5: Solve for x
    x = 237,511,673.04/18,187.40
  6. Step 6: Final answer
    x = 13,059.13

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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.