Home / 9,156.38-13,736.68-3,891.56

Finding the Fourth Proportional to 9,156.38, 13,736.68 and 3,891.56

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Solution

The fourth proportional to 9,156.38, 13,736.68 and 3,891.56 is: 5,838.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156.38 : 13,736.68 = 3,891.56 : x
  2. Step 2: Convert to fraction form
    9,156.38/13,736.68 = 3,891.56/x
  3. Step 3: Cross multiply
    9,156.38x = 13,736.68 × 3,891.56
  4. Step 4: Simplify right side
    9,156.38x = 53,457,114.42
  5. Step 5: Solve for x
    x = 53,457,114.42/9,156.38
  6. Step 6: Final answer
    x = 5,838.24

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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.