Home / 8,964.30-13,447.67-3,120.15

Finding the Fourth Proportional to 8,964.30, 13,447.67 and 3,120.15

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Solution

The fourth proportional to 8,964.30, 13,447.67 and 3,120.15 is: 4,680.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.30 : 13,447.67 = 3,120.15 : x
  2. Step 2: Convert to fraction form
    8,964.30/13,447.67 = 3,120.15/x
  3. Step 3: Cross multiply
    8,964.30x = 13,447.67 × 3,120.15
  4. Step 4: Simplify right side
    8,964.30x = 41,958,747.55
  5. Step 5: Solve for x
    x = 41,958,747.55/8,964.30
  6. Step 6: Final answer
    x = 4,680.65

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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.