Home / 8,258.75-12,395.61-5,144.80

Finding the Fourth Proportional to 8,258.75, 12,395.61 and 5,144.80

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Solution

The fourth proportional to 8,258.75, 12,395.61 and 5,144.80 is: 7,721.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.75 : 12,395.61 = 5,144.80 : x
  2. Step 2: Convert to fraction form
    8,258.75/12,395.61 = 5,144.80/x
  3. Step 3: Cross multiply
    8,258.75x = 12,395.61 × 5,144.80
  4. Step 4: Simplify right side
    8,258.75x = 63,772,934.33
  5. Step 5: Solve for x
    x = 63,772,934.33/8,258.75
  6. Step 6: Final answer
    x = 7,721.86

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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.