Home / 7,151.37-10,716.84-3,143.96

Finding the Fourth Proportional to 7,151.37, 10,716.84 and 3,143.96

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Solution

The fourth proportional to 7,151.37, 10,716.84 and 3,143.96 is: 4,711.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.37 : 10,716.84 = 3,143.96 : x
  2. Step 2: Convert to fraction form
    7,151.37/10,716.84 = 3,143.96/x
  3. Step 3: Cross multiply
    7,151.37x = 10,716.84 × 3,143.96
  4. Step 4: Simplify right side
    7,151.37x = 33,693,316.29
  5. Step 5: Solve for x
    x = 33,693,316.29/7,151.37
  6. Step 6: Final answer
    x = 4,711.45

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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.