Home / 8,717.24-13,078.06-3,785.68

Finding the Fourth Proportional to 8,717.24, 13,078.06 and 3,785.68

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Solution

The fourth proportional to 8,717.24, 13,078.06 and 3,785.68 is: 5,679.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.24 : 13,078.06 = 3,785.68 : x
  2. Step 2: Convert to fraction form
    8,717.24/13,078.06 = 3,785.68/x
  3. Step 3: Cross multiply
    8,717.24x = 13,078.06 × 3,785.68
  4. Step 4: Simplify right side
    8,717.24x = 49,509,350.18
  5. Step 5: Solve for x
    x = 49,509,350.18/8,717.24
  6. Step 6: Final answer
    x = 5,679.48

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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.