Home / 8,180.57-12,250.26-7,431.45

Finding the Fourth Proportional to 8,180.57, 12,250.26 and 7,431.45

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Solution

The fourth proportional to 8,180.57, 12,250.26 and 7,431.45 is: 11,128.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.57 : 12,250.26 = 7,431.45 : x
  2. Step 2: Convert to fraction form
    8,180.57/12,250.26 = 7,431.45/x
  3. Step 3: Cross multiply
    8,180.57x = 12,250.26 × 7,431.45
  4. Step 4: Simplify right side
    8,180.57x = 91,037,194.68
  5. Step 5: Solve for x
    x = 91,037,194.68/8,180.57
  6. Step 6: Final answer
    x = 11,128.47

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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.