Home / 7,318.68-10,974.70-3,156.72

Finding the Fourth Proportional to 7,318.68, 10,974.70 and 3,156.72

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Solution

The fourth proportional to 7,318.68, 10,974.70 and 3,156.72 is: 4,733.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.68 : 10,974.70 = 3,156.72 : x
  2. Step 2: Convert to fraction form
    7,318.68/10,974.70 = 3,156.72/x
  3. Step 3: Cross multiply
    7,318.68x = 10,974.70 × 3,156.72
  4. Step 4: Simplify right side
    7,318.68x = 34,644,054.98
  5. Step 5: Solve for x
    x = 34,644,054.98/7,318.68
  6. Step 6: Final answer
    x = 4,733.65

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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.