Home / 8,427.08-12,636.97-6,480.65

Finding the Fourth Proportional to 8,427.08, 12,636.97 and 6,480.65

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Solution

The fourth proportional to 8,427.08, 12,636.97 and 6,480.65 is: 9,718.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.08 : 12,636.97 = 6,480.65 : x
  2. Step 2: Convert to fraction form
    8,427.08/12,636.97 = 6,480.65/x
  3. Step 3: Cross multiply
    8,427.08x = 12,636.97 × 6,480.65
  4. Step 4: Simplify right side
    8,427.08x = 81,895,700.24
  5. Step 5: Solve for x
    x = 81,895,700.24/8,427.08
  6. Step 6: Final answer
    x = 9,718.16

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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.