Home / 7,163.85-9,883.20-5,170.02

Finding the Fourth Proportional to 7,163.85, 9,883.20 and 5,170.02

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Solution

The fourth proportional to 7,163.85, 9,883.20 and 5,170.02 is: 7,132.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.85 : 9,883.20 = 5,170.02 : x
  2. Step 2: Convert to fraction form
    7,163.85/9,883.20 = 5,170.02/x
  3. Step 3: Cross multiply
    7,163.85x = 9,883.20 × 5,170.02
  4. Step 4: Simplify right side
    7,163.85x = 51,096,341.66
  5. Step 5: Solve for x
    x = 51,096,341.66/7,163.85
  6. Step 6: Final answer
    x = 7,132.53

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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.