Home / 14,144.58-21,220.26-9,992.70

Finding the Fourth Proportional to 14,144.58, 21,220.26 and 9,992.70

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Solution

The fourth proportional to 14,144.58, 21,220.26 and 9,992.70 is: 14,991.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,144.58 : 21,220.26 = 9,992.70 : x
  2. Step 2: Convert to fraction form
    14,144.58/21,220.26 = 9,992.70/x
  3. Step 3: Cross multiply
    14,144.58x = 21,220.26 × 9,992.70
  4. Step 4: Simplify right side
    14,144.58x = 212,047,692.10
  5. Step 5: Solve for x
    x = 212,047,692.10/14,144.58
  6. Step 6: Final answer
    x = 14,991.44

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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.