Home / 7,151.75-9,867.44-4,126.76

Finding the Fourth Proportional to 7,151.75, 9,867.44 and 4,126.76

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Solution

The fourth proportional to 7,151.75, 9,867.44 and 4,126.76 is: 5,693.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.75 : 9,867.44 = 4,126.76 : x
  2. Step 2: Convert to fraction form
    7,151.75/9,867.44 = 4,126.76/x
  3. Step 3: Cross multiply
    7,151.75x = 9,867.44 × 4,126.76
  4. Step 4: Simplify right side
    7,151.75x = 40,720,486.72
  5. Step 5: Solve for x
    x = 40,720,486.72/7,151.75
  6. Step 6: Final answer
    x = 5,693.78

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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.