Home / 8,758.43-13,137.66-5,815.70

Finding the Fourth Proportional to 8,758.43, 13,137.66 and 5,815.70

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Solution

The fourth proportional to 8,758.43, 13,137.66 and 5,815.70 is: 8,723.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.43 : 13,137.66 = 5,815.70 : x
  2. Step 2: Convert to fraction form
    8,758.43/13,137.66 = 5,815.70/x
  3. Step 3: Cross multiply
    8,758.43x = 13,137.66 × 5,815.70
  4. Step 4: Simplify right side
    8,758.43x = 76,404,672.84
  5. Step 5: Solve for x
    x = 76,404,672.84/8,758.43
  6. Step 6: Final answer
    x = 8,723.56

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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.