Home / 18,128.48-27,194.01-7,587.89

Finding the Fourth Proportional to 18,128.48, 27,194.01 and 7,587.89

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Solution

The fourth proportional to 18,128.48, 27,194.01 and 7,587.89 is: 11,382.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.48 : 27,194.01 = 7,587.89 : x
  2. Step 2: Convert to fraction form
    18,128.48/27,194.01 = 7,587.89/x
  3. Step 3: Cross multiply
    18,128.48x = 27,194.01 × 7,587.89
  4. Step 4: Simplify right side
    18,128.48x = 206,345,020.57
  5. Step 5: Solve for x
    x = 206,345,020.57/18,128.48
  6. Step 6: Final answer
    x = 11,382.37

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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.