Home / 8,173.85-12,262.59-2,979.72

Finding the Fourth Proportional to 8,173.85, 12,262.59 and 2,979.72

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Solution

The fourth proportional to 8,173.85, 12,262.59 and 2,979.72 is: 4,470.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.85 : 12,262.59 = 2,979.72 : x
  2. Step 2: Convert to fraction form
    8,173.85/12,262.59 = 2,979.72/x
  3. Step 3: Cross multiply
    8,173.85x = 12,262.59 × 2,979.72
  4. Step 4: Simplify right side
    8,173.85x = 36,539,084.67
  5. Step 5: Solve for x
    x = 36,539,084.67/8,173.85
  6. Step 6: Final answer
    x = 4,470.24

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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.