Home / 12,504.38-18,756.57-5,107.55

Finding the Fourth Proportional to 12,504.38, 18,756.57 and 5,107.55

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Solution

The fourth proportional to 12,504.38, 18,756.57 and 5,107.55 is: 7,661.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504.38 : 18,756.57 = 5,107.55 : x
  2. Step 2: Convert to fraction form
    12,504.38/18,756.57 = 5,107.55/x
  3. Step 3: Cross multiply
    12,504.38x = 18,756.57 × 5,107.55
  4. Step 4: Simplify right side
    12,504.38x = 95,800,119.10
  5. Step 5: Solve for x
    x = 95,800,119.10/12,504.38
  6. Step 6: Final answer
    x = 7,661.33

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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.