Home / 14,220.83-21,331.36-9,321.49

Finding the Fourth Proportional to 14,220.83, 21,331.36 and 9,321.49

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Solution

The fourth proportional to 14,220.83, 21,331.36 and 9,321.49 is: 13,982.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.83 : 21,331.36 = 9,321.49 : x
  2. Step 2: Convert to fraction form
    14,220.83/21,331.36 = 9,321.49/x
  3. Step 3: Cross multiply
    14,220.83x = 21,331.36 × 9,321.49
  4. Step 4: Simplify right side
    14,220.83x = 198,840,058.93
  5. Step 5: Solve for x
    x = 198,840,058.93/14,220.83
  6. Step 6: Final answer
    x = 13,982.31

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Double scale
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Similar ratio
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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.