Home / 8,209.80-12,316.65-2,663.16

Finding the Fourth Proportional to 8,209.80, 12,316.65 and 2,663.16

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Solution

The fourth proportional to 8,209.80, 12,316.65 and 2,663.16 is: 3,995.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209.80 : 12,316.65 = 2,663.16 : x
  2. Step 2: Convert to fraction form
    8,209.80/12,316.65 = 2,663.16/x
  3. Step 3: Cross multiply
    8,209.80x = 12,316.65 × 2,663.16
  4. Step 4: Simplify right side
    8,209.80x = 32,801,209.61
  5. Step 5: Solve for x
    x = 32,801,209.61/8,209.80
  6. Step 6: Final answer
    x = 3,995.37

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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.