Home / 8,173.23-12,261.67-2,979.11

Finding the Fourth Proportional to 8,173.23, 12,261.67 and 2,979.11

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Solution

The fourth proportional to 8,173.23, 12,261.67 and 2,979.11 is: 4,469.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.23 : 12,261.67 = 2,979.11 : x
  2. Step 2: Convert to fraction form
    8,173.23/12,261.67 = 2,979.11/x
  3. Step 3: Cross multiply
    8,173.23x = 12,261.67 × 2,979.11
  4. Step 4: Simplify right side
    8,173.23x = 36,528,863.71
  5. Step 5: Solve for x
    x = 36,528,863.71/8,173.23
  6. Step 6: Final answer
    x = 4,469.33

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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.