Home / 8,540.36-12,792.85-5,019.75

Finding the Fourth Proportional to 8,540.36, 12,792.85 and 5,019.75

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Solution

The fourth proportional to 8,540.36, 12,792.85 and 5,019.75 is: 7,519.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.36 : 12,792.85 = 5,019.75 : x
  2. Step 2: Convert to fraction form
    8,540.36/12,792.85 = 5,019.75/x
  3. Step 3: Cross multiply
    8,540.36x = 12,792.85 × 5,019.75
  4. Step 4: Simplify right side
    8,540.36x = 64,216,924.47
  5. Step 5: Solve for x
    x = 64,216,924.47/8,540.36
  6. Step 6: Final answer
    x = 7,519.23

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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.