Home / 7,981.53-11,979.67-4,035.57

Finding the Fourth Proportional to 7,981.53, 11,979.67 and 4,035.57

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Solution

The fourth proportional to 7,981.53, 11,979.67 and 4,035.57 is: 6,057.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.53 : 11,979.67 = 4,035.57 : x
  2. Step 2: Convert to fraction form
    7,981.53/11,979.67 = 4,035.57/x
  3. Step 3: Cross multiply
    7,981.53x = 11,979.67 × 4,035.57
  4. Step 4: Simplify right side
    7,981.53x = 48,344,736.96
  5. Step 5: Solve for x
    x = 48,344,736.96/7,981.53
  6. Step 6: Final answer
    x = 6,057.08

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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.