Home / 11,142.26-16,720.32-10,104.14

Finding the Fourth Proportional to 11,142.26, 16,720.32 and 10,104.14

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Solution

The fourth proportional to 11,142.26, 16,720.32 and 10,104.14 is: 15,162.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.26 : 16,720.32 = 10,104.14 : x
  2. Step 2: Convert to fraction form
    11,142.26/16,720.32 = 10,104.14/x
  3. Step 3: Cross multiply
    11,142.26x = 16,720.32 × 10,104.14
  4. Step 4: Simplify right side
    11,142.26x = 168,944,370.52
  5. Step 5: Solve for x
    x = 168,944,370.52/11,142.26
  6. Step 6: Final answer
    x = 15,162.49

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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.