Home / 18,108.45-27,170.42-7,580.93

Finding the Fourth Proportional to 18,108.45, 27,170.42 and 7,580.93

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Solution

The fourth proportional to 18,108.45, 27,170.42 and 7,580.93 is: 11,374.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.45 : 27,170.42 = 7,580.93 : x
  2. Step 2: Convert to fraction form
    18,108.45/27,170.42 = 7,580.93/x
  3. Step 3: Cross multiply
    18,108.45x = 27,170.42 × 7,580.93
  4. Step 4: Simplify right side
    18,108.45x = 205,977,052.09
  5. Step 5: Solve for x
    x = 205,977,052.09/18,108.45
  6. Step 6: Final answer
    x = 11,374.64

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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.