Home / 9,143.94-13,715.90-2,218.38

Finding the Fourth Proportional to 9,143.94, 13,715.90 and 2,218.38

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Solution

The fourth proportional to 9,143.94, 13,715.90 and 2,218.38 is: 3,327.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.94 : 13,715.90 = 2,218.38 : x
  2. Step 2: Convert to fraction form
    9,143.94/13,715.90 = 2,218.38/x
  3. Step 3: Cross multiply
    9,143.94x = 13,715.90 × 2,218.38
  4. Step 4: Simplify right side
    9,143.94x = 30,427,078.24
  5. Step 5: Solve for x
    x = 30,427,078.24/9,143.94
  6. Step 6: Final answer
    x = 3,327.57

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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.