Home / 11,720.94-17,553.41-6,775.58

Finding the Fourth Proportional to 11,720.94, 17,553.41 and 6,775.58

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Solution

The fourth proportional to 11,720.94, 17,553.41 and 6,775.58 is: 10,147.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.94 : 17,553.41 = 6,775.58 : x
  2. Step 2: Convert to fraction form
    11,720.94/17,553.41 = 6,775.58/x
  3. Step 3: Cross multiply
    11,720.94x = 17,553.41 × 6,775.58
  4. Step 4: Simplify right side
    11,720.94x = 118,934,569.14
  5. Step 5: Solve for x
    x = 118,934,569.14/11,720.94
  6. Step 6: Final answer
    x = 10,147.19

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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.