Home / 9,144.31-13,716.47-2,218.75

Finding the Fourth Proportional to 9,144.31, 13,716.47 and 2,218.75

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Solution

The fourth proportional to 9,144.31, 13,716.47 and 2,218.75 is: 3,328.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.31 : 13,716.47 = 2,218.75 : x
  2. Step 2: Convert to fraction form
    9,144.31/13,716.47 = 2,218.75/x
  3. Step 3: Cross multiply
    9,144.31x = 13,716.47 × 2,218.75
  4. Step 4: Simplify right side
    9,144.31x = 30,433,406.72
  5. Step 5: Solve for x
    x = 30,433,406.72/9,144.31
  6. Step 6: Final answer
    x = 3,328.13

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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.