Home / 9,147.45-13,719.75-2,906.64

Finding the Fourth Proportional to 9,147.45, 13,719.75 and 2,906.64

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Solution

The fourth proportional to 9,147.45, 13,719.75 and 2,906.64 is: 4,359.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.45 : 13,719.75 = 2,906.64 : x
  2. Step 2: Convert to fraction form
    9,147.45/13,719.75 = 2,906.64/x
  3. Step 3: Cross multiply
    9,147.45x = 13,719.75 × 2,906.64
  4. Step 4: Simplify right side
    9,147.45x = 39,878,374.14
  5. Step 5: Solve for x
    x = 39,878,374.14/9,147.45
  6. Step 6: Final answer
    x = 4,359.51

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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.