Home / 11,720.17-17,578.26-5,144.59

Finding the Fourth Proportional to 11,720.17, 17,578.26 and 5,144.59

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Solution

The fourth proportional to 11,720.17, 17,578.26 and 5,144.59 is: 7,716.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.17 : 17,578.26 = 5,144.59 : x
  2. Step 2: Convert to fraction form
    11,720.17/17,578.26 = 5,144.59/x
  3. Step 3: Cross multiply
    11,720.17x = 17,578.26 × 5,144.59
  4. Step 4: Simplify right side
    11,720.17x = 90,432,940.61
  5. Step 5: Solve for x
    x = 90,432,940.61/11,720.17
  6. Step 6: Final answer
    x = 7,716.01

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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.