Home / 11,318.65-16,963.61-5,078.41

Finding the Fourth Proportional to 11,318.65, 16,963.61 and 5,078.41

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Solution

The fourth proportional to 11,318.65, 16,963.61 and 5,078.41 is: 7,611.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.65 : 16,963.61 = 5,078.41 : x
  2. Step 2: Convert to fraction form
    11,318.65/16,963.61 = 5,078.41/x
  3. Step 3: Cross multiply
    11,318.65x = 16,963.61 × 5,078.41
  4. Step 4: Simplify right side
    11,318.65x = 86,148,098.86
  5. Step 5: Solve for x
    x = 86,148,098.86/11,318.65
  6. Step 6: Final answer
    x = 7,611.17

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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.