Home / 11,512.68-17,271.46-3,720.90

Finding the Fourth Proportional to 11,512.68, 17,271.46 and 3,720.90

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Solution

The fourth proportional to 11,512.68, 17,271.46 and 3,720.90 is: 5,582.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.68 : 17,271.46 = 3,720.90 : x
  2. Step 2: Convert to fraction form
    11,512.68/17,271.46 = 3,720.90/x
  3. Step 3: Cross multiply
    11,512.68x = 17,271.46 × 3,720.90
  4. Step 4: Simplify right side
    11,512.68x = 64,265,375.51
  5. Step 5: Solve for x
    x = 64,265,375.51/11,512.68
  6. Step 6: Final answer
    x = 5,582.14

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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.