Home / 9,144.29-13,716.43-2,218.79

Finding the Fourth Proportional to 9,144.29, 13,716.43 and 2,218.79

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Solution

The fourth proportional to 9,144.29, 13,716.43 and 2,218.79 is: 3,328.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.29 : 13,716.43 = 2,218.79 : x
  2. Step 2: Convert to fraction form
    9,144.29/13,716.43 = 2,218.79/x
  3. Step 3: Cross multiply
    9,144.29x = 13,716.43 × 2,218.79
  4. Step 4: Simplify right side
    9,144.29x = 30,433,803.59
  5. Step 5: Solve for x
    x = 30,433,803.59/9,144.29
  6. Step 6: Final answer
    x = 3,328.18

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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.