Home / 11,180.49-16,770.75-2,860.21

Finding the Fourth Proportional to 11,180.49, 16,770.75 and 2,860.21

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Solution

The fourth proportional to 11,180.49, 16,770.75 and 2,860.21 is: 4,290.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.49 : 16,770.75 = 2,860.21 : x
  2. Step 2: Convert to fraction form
    11,180.49/16,770.75 = 2,860.21/x
  3. Step 3: Cross multiply
    11,180.49x = 16,770.75 × 2,860.21
  4. Step 4: Simplify right side
    11,180.49x = 47,967,866.86
  5. Step 5: Solve for x
    x = 47,967,866.86/11,180.49
  6. Step 6: Final answer
    x = 4,290.32

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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.