Home / 9,144.64-13,721.96-3,878.83

Finding the Fourth Proportional to 9,144.64, 13,721.96 and 3,878.83

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Solution

The fourth proportional to 9,144.64, 13,721.96 and 3,878.83 is: 5,820.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.64 : 13,721.96 = 3,878.83 : x
  2. Step 2: Convert to fraction form
    9,144.64/13,721.96 = 3,878.83/x
  3. Step 3: Cross multiply
    9,144.64x = 13,721.96 × 3,878.83
  4. Step 4: Simplify right side
    9,144.64x = 53,225,150.11
  5. Step 5: Solve for x
    x = 53,225,150.11/9,144.64
  6. Step 6: Final answer
    x = 5,820.37

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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.