Home / 8,920.33-13,379.98-2,680.21

Finding the Fourth Proportional to 8,920.33, 13,379.98 and 2,680.21

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Solution

The fourth proportional to 8,920.33, 13,379.98 and 2,680.21 is: 4,020.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.33 : 13,379.98 = 2,680.21 : x
  2. Step 2: Convert to fraction form
    8,920.33/13,379.98 = 2,680.21/x
  3. Step 3: Cross multiply
    8,920.33x = 13,379.98 × 2,680.21
  4. Step 4: Simplify right side
    8,920.33x = 35,861,116.05
  5. Step 5: Solve for x
    x = 35,861,116.05/8,920.33
  6. Step 6: Final answer
    x = 4,020.16

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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.