Home / 18,107.55-27,168.62-7,580.79

Finding the Fourth Proportional to 18,107.55, 27,168.62 and 7,580.79

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Solution

The fourth proportional to 18,107.55, 27,168.62 and 7,580.79 is: 11,374.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.55 : 27,168.62 = 7,580.79 : x
  2. Step 2: Convert to fraction form
    18,107.55/27,168.62 = 7,580.79/x
  3. Step 3: Cross multiply
    18,107.55x = 27,168.62 × 7,580.79
  4. Step 4: Simplify right side
    18,107.55x = 205,959,564.91
  5. Step 5: Solve for x
    x = 205,959,564.91/18,107.55
  6. Step 6: Final answer
    x = 11,374.24

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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.