Home / 8,965.57-13,450.18-3,122.64

Finding the Fourth Proportional to 8,965.57, 13,450.18 and 3,122.64

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Solution

The fourth proportional to 8,965.57, 13,450.18 and 3,122.64 is: 4,684.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.57 : 13,450.18 = 3,122.64 : x
  2. Step 2: Convert to fraction form
    8,965.57/13,450.18 = 3,122.64/x
  3. Step 3: Cross multiply
    8,965.57x = 13,450.18 × 3,122.64
  4. Step 4: Simplify right side
    8,965.57x = 42,000,002.82
  5. Step 5: Solve for x
    x = 42,000,002.82/8,965.57
  6. Step 6: Final answer
    x = 4,684.59

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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.