Home / 7,942.24-11,913.63-3,785.32

Finding the Fourth Proportional to 7,942.24, 11,913.63 and 3,785.32

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Solution

The fourth proportional to 7,942.24, 11,913.63 and 3,785.32 is: 5,678.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.24 : 11,913.63 = 3,785.32 : x
  2. Step 2: Convert to fraction form
    7,942.24/11,913.63 = 3,785.32/x
  3. Step 3: Cross multiply
    7,942.24x = 11,913.63 × 3,785.32
  4. Step 4: Simplify right side
    7,942.24x = 45,096,901.91
  5. Step 5: Solve for x
    x = 45,096,901.91/7,942.24
  6. Step 6: Final answer
    x = 5,678.11

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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.