Home / 9,156.63-13,734.95-3,311.88

Finding the Fourth Proportional to 9,156.63, 13,734.95 and 3,311.88

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Solution

The fourth proportional to 9,156.63, 13,734.95 and 3,311.88 is: 4,967.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156.63 : 13,734.95 = 3,311.88 : x
  2. Step 2: Convert to fraction form
    9,156.63/13,734.95 = 3,311.88/x
  3. Step 3: Cross multiply
    9,156.63x = 13,734.95 × 3,311.88
  4. Step 4: Simplify right side
    9,156.63x = 45,488,506.21
  5. Step 5: Solve for x
    x = 45,488,506.21/9,156.63
  6. Step 6: Final answer
    x = 4,967.82

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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.