Home / 8,109.51-11,201.67-5,989.38

Finding the Fourth Proportional to 8,109.51, 11,201.67 and 5,989.38

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Solution

The fourth proportional to 8,109.51, 11,201.67 and 5,989.38 is: 8,273.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.51 : 11,201.67 = 5,989.38 : x
  2. Step 2: Convert to fraction form
    8,109.51/11,201.67 = 5,989.38/x
  3. Step 3: Cross multiply
    8,109.51x = 11,201.67 × 5,989.38
  4. Step 4: Simplify right side
    8,109.51x = 67,091,058.26
  5. Step 5: Solve for x
    x = 67,091,058.26/8,109.51
  6. Step 6: Final answer
    x = 8,273.13

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.