Home / 14,081.38-21,122.07-4,220.66

Finding the Fourth Proportional to 14,081.38, 21,122.07 and 4,220.66

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Solution

The fourth proportional to 14,081.38, 21,122.07 and 4,220.66 is: 6,330.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.38 : 21,122.07 = 4,220.66 : x
  2. Step 2: Convert to fraction form
    14,081.38/21,122.07 = 4,220.66/x
  3. Step 3: Cross multiply
    14,081.38x = 21,122.07 × 4,220.66
  4. Step 4: Simplify right side
    14,081.38x = 89,148,970.36
  5. Step 5: Solve for x
    x = 89,148,970.36/14,081.38
  6. Step 6: Final answer
    x = 6,330.98

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Half scale
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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.