Home / 18,164.12-27,231.48-5,677.72

Finding the Fourth Proportional to 18,164.12, 27,231.48 and 5,677.72

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Solution

The fourth proportional to 18,164.12, 27,231.48 and 5,677.72 is: 8,511.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.12 : 27,231.48 = 5,677.72 : x
  2. Step 2: Convert to fraction form
    18,164.12/27,231.48 = 5,677.72/x
  3. Step 3: Cross multiply
    18,164.12x = 27,231.48 × 5,677.72
  4. Step 4: Simplify right side
    18,164.12x = 154,612,554.08
  5. Step 5: Solve for x
    x = 154,612,554.08/18,164.12
  6. Step 6: Final answer
    x = 8,511.98

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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.