Home / 18,235.75-27,364.38-7,705.09

Finding the Fourth Proportional to 18,235.75, 27,364.38 and 7,705.09

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Solution

The fourth proportional to 18,235.75, 27,364.38 and 7,705.09 is: 11,562.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.75 : 27,364.38 = 7,705.09 : x
  2. Step 2: Convert to fraction form
    18,235.75/27,364.38 = 7,705.09/x
  3. Step 3: Cross multiply
    18,235.75x = 27,364.38 × 7,705.09
  4. Step 4: Simplify right side
    18,235.75x = 210,845,010.69
  5. Step 5: Solve for x
    x = 210,845,010.69/18,235.75
  6. Step 6: Final answer
    x = 11,562.18

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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.