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Finding the Fourth Proportional to 18,134.98, 27,207.06 and 8,779.48

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Solution

The fourth proportional to 18,134.98, 27,207.06 and 8,779.48 is: 13,171.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134.98 : 27,207.06 = 8,779.48 : x
  2. Step 2: Convert to fraction form
    18,134.98/27,207.06 = 8,779.48/x
  3. Step 3: Cross multiply
    18,134.98x = 27,207.06 × 8,779.48
  4. Step 4: Simplify right side
    18,134.98x = 238,863,839.13
  5. Step 5: Solve for x
    x = 238,863,839.13/18,134.98
  6. Step 6: Final answer
    x = 13,171.44

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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.