Home / 9,144.28-13,716.89-2,904.78

Finding the Fourth Proportional to 9,144.28, 13,716.89 and 2,904.78

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Solution

The fourth proportional to 9,144.28, 13,716.89 and 2,904.78 is: 4,357.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.28 : 13,716.89 = 2,904.78 : x
  2. Step 2: Convert to fraction form
    9,144.28/13,716.89 = 2,904.78/x
  3. Step 3: Cross multiply
    9,144.28x = 13,716.89 × 2,904.78
  4. Step 4: Simplify right side
    9,144.28x = 39,844,534.72
  5. Step 5: Solve for x
    x = 39,844,534.72/9,144.28
  6. Step 6: Final answer
    x = 4,357.32

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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.