Home / 7,318.09-10,098.87-3,960.82

Finding the Fourth Proportional to 7,318.09, 10,098.87 and 3,960.82

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Solution

The fourth proportional to 7,318.09, 10,098.87 and 3,960.82 is: 5,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.09 : 10,098.87 = 3,960.82 : x
  2. Step 2: Convert to fraction form
    7,318.09/10,098.87 = 3,960.82/x
  3. Step 3: Cross multiply
    7,318.09x = 10,098.87 × 3,960.82
  4. Step 4: Simplify right side
    7,318.09x = 39,999,806.27
  5. Step 5: Solve for x
    x = 39,999,806.27/7,318.09
  6. Step 6: Final answer
    x = 5,465.88

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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.