Home / 8,740.42-13,110.55-5,231.39

Finding the Fourth Proportional to 8,740.42, 13,110.55 and 5,231.39

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Solution

The fourth proportional to 8,740.42, 13,110.55 and 5,231.39 is: 7,847.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.42 : 13,110.55 = 5,231.39 : x
  2. Step 2: Convert to fraction form
    8,740.42/13,110.55 = 5,231.39/x
  3. Step 3: Cross multiply
    8,740.42x = 13,110.55 × 5,231.39
  4. Step 4: Simplify right side
    8,740.42x = 68,586,321.53
  5. Step 5: Solve for x
    x = 68,586,321.53/8,740.42
  6. Step 6: Final answer
    x = 7,847.03

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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.