Home / 14,612.20-21,910.20-6,290.80

Finding the Fourth Proportional to 14,612.20, 21,910.20 and 6,290.80

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Solution

The fourth proportional to 14,612.20, 21,910.20 and 6,290.80 is: 9,432.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,612.20 : 21,910.20 = 6,290.80 : x
  2. Step 2: Convert to fraction form
    14,612.20/21,910.20 = 6,290.80/x
  3. Step 3: Cross multiply
    14,612.20x = 21,910.20 × 6,290.80
  4. Step 4: Simplify right side
    14,612.20x = 137,832,686.16
  5. Step 5: Solve for x
    x = 137,832,686.16/14,612.20
  6. Step 6: Final answer
    x = 9,432.71

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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.