Home / 8,634.13-12,948.45-2,789.38

Finding the Fourth Proportional to 8,634.13, 12,948.45 and 2,789.38

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Solution

The fourth proportional to 8,634.13, 12,948.45 and 2,789.38 is: 4,183.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.13 : 12,948.45 = 2,789.38 : x
  2. Step 2: Convert to fraction form
    8,634.13/12,948.45 = 2,789.38/x
  3. Step 3: Cross multiply
    8,634.13x = 12,948.45 × 2,789.38
  4. Step 4: Simplify right side
    8,634.13x = 36,118,147.46
  5. Step 5: Solve for x
    x = 36,118,147.46/8,634.13
  6. Step 6: Final answer
    x = 4,183.18

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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.