Home / 8,648.46-12,972.66-2,725.84

Finding the Fourth Proportional to 8,648.46, 12,972.66 and 2,725.84

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Solution

The fourth proportional to 8,648.46, 12,972.66 and 2,725.84 is: 4,088.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,648.46 : 12,972.66 = 2,725.84 : x
  2. Step 2: Convert to fraction form
    8,648.46/12,972.66 = 2,725.84/x
  3. Step 3: Cross multiply
    8,648.46x = 12,972.66 × 2,725.84
  4. Step 4: Simplify right side
    8,648.46x = 35,361,363.10
  5. Step 5: Solve for x
    x = 35,361,363.10/8,648.46
  6. Step 6: Final answer
    x = 4,088.75

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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.