Home / 8,560.96-12,836.88-3,940

Finding the Fourth Proportional to 8,560.96, 12,836.88 and 3,940

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Solution

The fourth proportional to 8,560.96, 12,836.88 and 3,940 is: 5,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.96 : 12,836.88 = 3,940 : x
  2. Step 2: Convert to fraction form
    8,560.96/12,836.88 = 3,940/x
  3. Step 3: Cross multiply
    8,560.96x = 12,836.88 × 3,940
  4. Step 4: Simplify right side
    8,560.96x = 50,577,307.20
  5. Step 5: Solve for x
    x = 50,577,307.20/8,560.96
  6. Step 6: Final answer
    x = 5,907.90

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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.