Home / 7,540.48-11,255.78-6,984.61

Finding the Fourth Proportional to 7,540.48, 11,255.78 and 6,984.61

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Solution

The fourth proportional to 7,540.48, 11,255.78 and 6,984.61 is: 10,426.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.48 : 11,255.78 = 6,984.61 : x
  2. Step 2: Convert to fraction form
    7,540.48/11,255.78 = 6,984.61/x
  3. Step 3: Cross multiply
    7,540.48x = 11,255.78 × 6,984.61
  4. Step 4: Simplify right side
    7,540.48x = 78,617,233.55
  5. Step 5: Solve for x
    x = 78,617,233.55/7,540.48
  6. Step 6: Final answer
    x = 10,426.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.