Home / 8,488.91-11,714.72-4,712.15

Finding the Fourth Proportional to 8,488.91, 11,714.72 and 4,712.15

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Solution

The fourth proportional to 8,488.91, 11,714.72 and 4,712.15 is: 6,502.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.91 : 11,714.72 = 4,712.15 : x
  2. Step 2: Convert to fraction form
    8,488.91/11,714.72 = 4,712.15/x
  3. Step 3: Cross multiply
    8,488.91x = 11,714.72 × 4,712.15
  4. Step 4: Simplify right side
    8,488.91x = 55,201,517.85
  5. Step 5: Solve for x
    x = 55,201,517.85/8,488.91
  6. Step 6: Final answer
    x = 6,502.78

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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.