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Finding the Fourth Proportional to 18,004.31, 27,016.19 and 8,770.31

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Solution

The fourth proportional to 18,004.31, 27,016.19 and 8,770.31 is: 13,160.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,004.31 : 27,016.19 = 8,770.31 : x
  2. Step 2: Convert to fraction form
    18,004.31/27,016.19 = 8,770.31/x
  3. Step 3: Cross multiply
    18,004.31x = 27,016.19 × 8,770.31
  4. Step 4: Simplify right side
    18,004.31x = 236,940,417.90
  5. Step 5: Solve for x
    x = 236,940,417.90/18,004.31
  6. Step 6: Final answer
    x = 13,160.20

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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.