Home / 11,556.28-17,317.78-8,947

Finding the Fourth Proportional to 11,556.28, 17,317.78 and 8,947

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Solution

The fourth proportional to 11,556.28, 17,317.78 and 8,947 is: 13,407.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,556.28 : 17,317.78 = 8,947 : x
  2. Step 2: Convert to fraction form
    11,556.28/17,317.78 = 8,947/x
  3. Step 3: Cross multiply
    11,556.28x = 17,317.78 × 8,947
  4. Step 4: Simplify right side
    11,556.28x = 154,942,177.66
  5. Step 5: Solve for x
    x = 154,942,177.66/11,556.28
  6. Step 6: Final answer
    x = 13,407.62

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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.