Home / 18,954.08-28,434.36-5,805.08

Finding the Fourth Proportional to 18,954.08, 28,434.36 and 5,805.08

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Solution

The fourth proportional to 18,954.08, 28,434.36 and 5,805.08 is: 8,708.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954.08 : 28,434.36 = 5,805.08 : x
  2. Step 2: Convert to fraction form
    18,954.08/28,434.36 = 5,805.08/x
  3. Step 3: Cross multiply
    18,954.08x = 28,434.36 × 5,805.08
  4. Step 4: Simplify right side
    18,954.08x = 165,063,734.55
  5. Step 5: Solve for x
    x = 165,063,734.55/18,954.08
  6. Step 6: Final answer
    x = 8,708.61

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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.