Home / 8,370.25-12,547.91-3,179.77

Finding the Fourth Proportional to 8,370.25, 12,547.91 and 3,179.77

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Solution

The fourth proportional to 8,370.25, 12,547.91 and 3,179.77 is: 4,766.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.25 : 12,547.91 = 3,179.77 : x
  2. Step 2: Convert to fraction form
    8,370.25/12,547.91 = 3,179.77/x
  3. Step 3: Cross multiply
    8,370.25x = 12,547.91 × 3,179.77
  4. Step 4: Simplify right side
    8,370.25x = 39,899,467.78
  5. Step 5: Solve for x
    x = 39,899,467.78/8,370.25
  6. Step 6: Final answer
    x = 4,766.82

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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.