Home / 9,156.20-13,734.30-3,311.45

Finding the Fourth Proportional to 9,156.20, 13,734.30 and 3,311.45

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Solution

The fourth proportional to 9,156.20, 13,734.30 and 3,311.45 is: 4,967.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156.20 : 13,734.30 = 3,311.45 : x
  2. Step 2: Convert to fraction form
    9,156.20/13,734.30 = 3,311.45/x
  3. Step 3: Cross multiply
    9,156.20x = 13,734.30 × 3,311.45
  4. Step 4: Simplify right side
    9,156.20x = 45,480,379.06
  5. Step 5: Solve for x
    x = 45,480,379.06/9,156.20
  6. Step 6: Final answer
    x = 4,967.17

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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.