Home / 11,058.34-15,233.70-8,220.80

Finding the Fourth Proportional to 11,058.34, 15,233.70 and 8,220.80

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Solution

The fourth proportional to 11,058.34, 15,233.70 and 8,220.80 is: 11,324.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,058.34 : 15,233.70 = 8,220.80 : x
  2. Step 2: Convert to fraction form
    11,058.34/15,233.70 = 8,220.80/x
  3. Step 3: Cross multiply
    11,058.34x = 15,233.70 × 8,220.80
  4. Step 4: Simplify right side
    11,058.34x = 125,233,200.96
  5. Step 5: Solve for x
    x = 125,233,200.96/11,058.34
  6. Step 6: Final answer
    x = 11,324.78

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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.