Home / 18,399.90-27,595.23-7,864.71

Finding the Fourth Proportional to 18,399.90, 27,595.23 and 7,864.71

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Solution

The fourth proportional to 18,399.90, 27,595.23 and 7,864.71 is: 11,795.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.90 : 27,595.23 = 7,864.71 : x
  2. Step 2: Convert to fraction form
    18,399.90/27,595.23 = 7,864.71/x
  3. Step 3: Cross multiply
    18,399.90x = 27,595.23 × 7,864.71
  4. Step 4: Simplify right side
    18,399.90x = 217,028,481.33
  5. Step 5: Solve for x
    x = 217,028,481.33/18,399.90
  6. Step 6: Final answer
    x = 11,795.09

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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.