Home / 11,287.08-16,931.73-3,890.57

Finding the Fourth Proportional to 11,287.08, 16,931.73 and 3,890.57

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Solution

The fourth proportional to 11,287.08, 16,931.73 and 3,890.57 is: 5,836.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.08 : 16,931.73 = 3,890.57 : x
  2. Step 2: Convert to fraction form
    11,287.08/16,931.73 = 3,890.57/x
  3. Step 3: Cross multiply
    11,287.08x = 16,931.73 × 3,890.57
  4. Step 4: Simplify right side
    11,287.08x = 65,874,010.72
  5. Step 5: Solve for x
    x = 65,874,010.72/11,287.08
  6. Step 6: Final answer
    x = 5,836.23

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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.