Home / 8,788.92-12,129-5,012.64

Finding the Fourth Proportional to 8,788.92, 12,129 and 5,012.64

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Solution

The fourth proportional to 8,788.92, 12,129 and 5,012.64 is: 6,917.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.92 : 12,129 = 5,012.64 : x
  2. Step 2: Convert to fraction form
    8,788.92/12,129 = 5,012.64/x
  3. Step 3: Cross multiply
    8,788.92x = 12,129 × 5,012.64
  4. Step 4: Simplify right side
    8,788.92x = 60,798,310.56
  5. Step 5: Solve for x
    x = 60,798,310.56/8,788.92
  6. Step 6: Final answer
    x = 6,917.61

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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.