Home / 11,000.39-15,180.35-6,220.26

Finding the Fourth Proportional to 11,000.39, 15,180.35 and 6,220.26

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Solution

The fourth proportional to 11,000.39, 15,180.35 and 6,220.26 is: 8,583.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,000.39 : 15,180.35 = 6,220.26 : x
  2. Step 2: Convert to fraction form
    11,000.39/15,180.35 = 6,220.26/x
  3. Step 3: Cross multiply
    11,000.39x = 15,180.35 × 6,220.26
  4. Step 4: Simplify right side
    11,000.39x = 94,425,692.79
  5. Step 5: Solve for x
    x = 94,425,692.79/11,000.39
  6. Step 6: Final answer
    x = 8,583.85

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Half scale
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Double scale
Find fourth proportional to 11,001.39, 15,181.72 and 6,221.26
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.