Home / 11,321.29-15,619.09-8,344.24

Finding the Fourth Proportional to 11,321.29, 15,619.09 and 8,344.24

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Solution

The fourth proportional to 11,321.29, 15,619.09 and 8,344.24 is: 11,511.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.29 : 15,619.09 = 8,344.24 : x
  2. Step 2: Convert to fraction form
    11,321.29/15,619.09 = 8,344.24/x
  3. Step 3: Cross multiply
    11,321.29x = 15,619.09 × 8,344.24
  4. Step 4: Simplify right side
    11,321.29x = 130,329,315.72
  5. Step 5: Solve for x
    x = 130,329,315.72/11,321.29
  6. Step 6: Final answer
    x = 11,511.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.