Home / 8,203.05-12,306.51-2,656.38

Finding the Fourth Proportional to 8,203.05, 12,306.51 and 2,656.38

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Solution

The fourth proportional to 8,203.05, 12,306.51 and 2,656.38 is: 3,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,203.05 : 12,306.51 = 2,656.38 : x
  2. Step 2: Convert to fraction form
    8,203.05/12,306.51 = 2,656.38/x
  3. Step 3: Cross multiply
    8,203.05x = 12,306.51 × 2,656.38
  4. Step 4: Simplify right side
    8,203.05x = 32,690,753.75
  5. Step 5: Solve for x
    x = 32,690,753.75/8,203.05
  6. Step 6: Final answer
    x = 3,985.20

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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.