Home / 8,785.97-12,129.66-5,810.44

Finding the Fourth Proportional to 8,785.97, 12,129.66 and 5,810.44

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Solution

The fourth proportional to 8,785.97, 12,129.66 and 5,810.44 is: 8,021.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.97 : 12,129.66 = 5,810.44 : x
  2. Step 2: Convert to fraction form
    8,785.97/12,129.66 = 5,810.44/x
  3. Step 3: Cross multiply
    8,785.97x = 12,129.66 × 5,810.44
  4. Step 4: Simplify right side
    8,785.97x = 70,478,661.65
  5. Step 5: Solve for x
    x = 70,478,661.65/8,785.97
  6. Step 6: Final answer
    x = 8,021.73

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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.