Home / 6,645.17-9,173.66-5,149.73

Finding the Fourth Proportional to 6,645.17, 9,173.66 and 5,149.73

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Solution

The fourth proportional to 6,645.17, 9,173.66 and 5,149.73 is: 7,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.17 : 9,173.66 = 5,149.73 : x
  2. Step 2: Convert to fraction form
    6,645.17/9,173.66 = 5,149.73/x
  3. Step 3: Cross multiply
    6,645.17x = 9,173.66 × 5,149.73
  4. Step 4: Simplify right side
    6,645.17x = 47,241,800.49
  5. Step 5: Solve for x
    x = 47,241,800.49/6,645.17
  6. Step 6: Final answer
    x = 7,109.20

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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.