Home / 11,155.26-16,735.71-7,874.76

Finding the Fourth Proportional to 11,155.26, 16,735.71 and 7,874.76

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Solution

The fourth proportional to 11,155.26, 16,735.71 and 7,874.76 is: 11,814.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.26 : 16,735.71 = 7,874.76 : x
  2. Step 2: Convert to fraction form
    11,155.26/16,735.71 = 7,874.76/x
  3. Step 3: Cross multiply
    11,155.26x = 16,735.71 × 7,874.76
  4. Step 4: Simplify right side
    11,155.26x = 131,789,699.68
  5. Step 5: Solve for x
    x = 131,789,699.68/11,155.26
  6. Step 6: Final answer
    x = 11,814.13

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1.5x scale

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.