Home / 8,129.29-11,217.84-4,725.97

Finding the Fourth Proportional to 8,129.29, 11,217.84 and 4,725.97

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Solution

The fourth proportional to 8,129.29, 11,217.84 and 4,725.97 is: 6,521.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.29 : 11,217.84 = 4,725.97 : x
  2. Step 2: Convert to fraction form
    8,129.29/11,217.84 = 4,725.97/x
  3. Step 3: Cross multiply
    8,129.29x = 11,217.84 × 4,725.97
  4. Step 4: Simplify right side
    8,129.29x = 53,015,175.30
  5. Step 5: Solve for x
    x = 53,015,175.30/8,129.29
  6. Step 6: Final answer
    x = 6,521.50

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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.