Home / 18,311.68-27,431.13-8,924.33

Finding the Fourth Proportional to 18,311.68, 27,431.13 and 8,924.33

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Solution

The fourth proportional to 18,311.68, 27,431.13 and 8,924.33 is: 13,368.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.68 : 27,431.13 = 8,924.33 : x
  2. Step 2: Convert to fraction form
    18,311.68/27,431.13 = 8,924.33/x
  3. Step 3: Cross multiply
    18,311.68x = 27,431.13 × 8,924.33
  4. Step 4: Simplify right side
    18,311.68x = 244,804,379.04
  5. Step 5: Solve for x
    x = 244,804,379.04/18,311.68
  6. Step 6: Final answer
    x = 13,368.75

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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.