Home / 8,754.43-12,078.97-5,614.87

Finding the Fourth Proportional to 8,754.43, 12,078.97 and 5,614.87

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Solution

The fourth proportional to 8,754.43, 12,078.97 and 5,614.87 is: 7,747.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.43 : 12,078.97 = 5,614.87 : x
  2. Step 2: Convert to fraction form
    8,754.43/12,078.97 = 5,614.87/x
  3. Step 3: Cross multiply
    8,754.43x = 12,078.97 × 5,614.87
  4. Step 4: Simplify right side
    8,754.43x = 67,821,846.28
  5. Step 5: Solve for x
    x = 67,821,846.28/8,754.43
  6. Step 6: Final answer
    x = 7,747.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.