Home / 11,220.11-16,830.12-2,899.42

Finding the Fourth Proportional to 11,220.11, 16,830.12 and 2,899.42

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Solution

The fourth proportional to 11,220.11, 16,830.12 and 2,899.42 is: 4,349.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.11 : 16,830.12 = 2,899.42 : x
  2. Step 2: Convert to fraction form
    11,220.11/16,830.12 = 2,899.42/x
  3. Step 3: Cross multiply
    11,220.11x = 16,830.12 × 2,899.42
  4. Step 4: Simplify right side
    11,220.11x = 48,797,600.32
  5. Step 5: Solve for x
    x = 48,797,600.32/11,220.11
  6. Step 6: Final answer
    x = 4,349.12

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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.