Home / 9,156.20-13,728.23-3,312.05

Finding the Fourth Proportional to 9,156.20, 13,728.23 and 3,312.05

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Solution

The fourth proportional to 9,156.20, 13,728.23 and 3,312.05 is: 4,965.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156.20 : 13,728.23 = 3,312.05 : x
  2. Step 2: Convert to fraction form
    9,156.20/13,728.23 = 3,312.05/x
  3. Step 3: Cross multiply
    9,156.20x = 13,728.23 × 3,312.05
  4. Step 4: Simplify right side
    9,156.20x = 45,468,584.17
  5. Step 5: Solve for x
    x = 45,468,584.17/9,156.20
  6. Step 6: Final answer
    x = 4,965.88

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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.