Home / 8,039.85-11,100.42-5,019.58

Finding the Fourth Proportional to 8,039.85, 11,100.42 and 5,019.58

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Solution

The fourth proportional to 8,039.85, 11,100.42 and 5,019.58 is: 6,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,039.85 : 11,100.42 = 5,019.58 : x
  2. Step 2: Convert to fraction form
    8,039.85/11,100.42 = 5,019.58/x
  3. Step 3: Cross multiply
    8,039.85x = 11,100.42 × 5,019.58
  4. Step 4: Simplify right side
    8,039.85x = 55,719,399.65
  5. Step 5: Solve for x
    x = 55,719,399.65/8,039.85
  6. Step 6: Final answer
    x = 6,930.40

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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.