Home / 9,144.64-13,716.96-2,219.14

Finding the Fourth Proportional to 9,144.64, 13,716.96 and 2,219.14

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Solution

The fourth proportional to 9,144.64, 13,716.96 and 2,219.14 is: 3,328.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.64 : 13,716.96 = 2,219.14 : x
  2. Step 2: Convert to fraction form
    9,144.64/13,716.96 = 2,219.14/x
  3. Step 3: Cross multiply
    9,144.64x = 13,716.96 × 2,219.14
  4. Step 4: Simplify right side
    9,144.64x = 30,439,854.61
  5. Step 5: Solve for x
    x = 30,439,854.61/9,144.64
  6. Step 6: Final answer
    x = 3,328.71

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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.