Home / 12,523.38-18,785.08-5,126.56

Finding the Fourth Proportional to 12,523.38, 18,785.08 and 5,126.56

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Solution

The fourth proportional to 12,523.38, 18,785.08 and 5,126.56 is: 7,689.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,523.38 : 18,785.08 = 5,126.56 : x
  2. Step 2: Convert to fraction form
    12,523.38/18,785.08 = 5,126.56/x
  3. Step 3: Cross multiply
    12,523.38x = 18,785.08 × 5,126.56
  4. Step 4: Simplify right side
    12,523.38x = 96,302,839.72
  5. Step 5: Solve for x
    x = 96,302,839.72/12,523.38
  6. Step 6: Final answer
    x = 7,689.84

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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.