Home / 9,142.38-13,713.57-3,218.94

Finding the Fourth Proportional to 9,142.38, 13,713.57 and 3,218.94

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Solution

The fourth proportional to 9,142.38, 13,713.57 and 3,218.94 is: 4,828.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,142.38 : 13,713.57 = 3,218.94 : x
  2. Step 2: Convert to fraction form
    9,142.38/13,713.57 = 3,218.94/x
  3. Step 3: Cross multiply
    9,142.38x = 13,713.57 × 3,218.94
  4. Step 4: Simplify right side
    9,142.38x = 44,143,159.02
  5. Step 5: Solve for x
    x = 44,143,159.02/9,142.38
  6. Step 6: Final answer
    x = 4,828.41

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Similar ratio
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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.