Home / 8,454.75-12,678.27-3,521.44

Finding the Fourth Proportional to 8,454.75, 12,678.27 and 3,521.44

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Solution

The fourth proportional to 8,454.75, 12,678.27 and 3,521.44 is: 5,280.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.75 : 12,678.27 = 3,521.44 : x
  2. Step 2: Convert to fraction form
    8,454.75/12,678.27 = 3,521.44/x
  3. Step 3: Cross multiply
    8,454.75x = 12,678.27 × 3,521.44
  4. Step 4: Simplify right side
    8,454.75x = 44,645,767.11
  5. Step 5: Solve for x
    x = 44,645,767.11/8,454.75
  6. Step 6: Final answer
    x = 5,280.55

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1.5x scale

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.