Home / 9,156.66-13,734.98-3,311.90

Finding the Fourth Proportional to 9,156.66, 13,734.98 and 3,311.90

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Solution

The fourth proportional to 9,156.66, 13,734.98 and 3,311.90 is: 4,967.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156.66 : 13,734.98 = 3,311.90 : x
  2. Step 2: Convert to fraction form
    9,156.66/13,734.98 = 3,311.90/x
  3. Step 3: Cross multiply
    9,156.66x = 13,734.98 × 3,311.90
  4. Step 4: Simplify right side
    9,156.66x = 45,488,880.26
  5. Step 5: Solve for x
    x = 45,488,880.26/9,156.66
  6. Step 6: Final answer
    x = 4,967.85

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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.