Home / 8,631.35-11,898.77-5,716.04

Finding the Fourth Proportional to 8,631.35, 11,898.77 and 5,716.04

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Solution

The fourth proportional to 8,631.35, 11,898.77 and 5,716.04 is: 7,879.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.35 : 11,898.77 = 5,716.04 : x
  2. Step 2: Convert to fraction form
    8,631.35/11,898.77 = 5,716.04/x
  3. Step 3: Cross multiply
    8,631.35x = 11,898.77 × 5,716.04
  4. Step 4: Simplify right side
    8,631.35x = 68,013,789.35
  5. Step 5: Solve for x
    x = 68,013,789.35/8,631.35
  6. Step 6: Final answer
    x = 7,879.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.