Home / 9,148.78-13,720.41-3,883.69

Finding the Fourth Proportional to 9,148.78, 13,720.41 and 3,883.69

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Solution

The fourth proportional to 9,148.78, 13,720.41 and 3,883.69 is: 5,824.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.78 : 13,720.41 = 3,883.69 : x
  2. Step 2: Convert to fraction form
    9,148.78/13,720.41 = 3,883.69/x
  3. Step 3: Cross multiply
    9,148.78x = 13,720.41 × 3,883.69
  4. Step 4: Simplify right side
    9,148.78x = 53,285,819.11
  5. Step 5: Solve for x
    x = 53,285,819.11/9,148.78
  6. Step 6: Final answer
    x = 5,824.36

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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.