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Finding the Fourth Proportional to 8,118.98, 11,204.22 and 4,392.98

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Solution

The fourth proportional to 8,118.98, 11,204.22 and 4,392.98 is: 6,062.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.98 : 11,204.22 = 4,392.98 : x
  2. Step 2: Convert to fraction form
    8,118.98/11,204.22 = 4,392.98/x
  3. Step 3: Cross multiply
    8,118.98x = 11,204.22 × 4,392.98
  4. Step 4: Simplify right side
    8,118.98x = 49,219,914.38
  5. Step 5: Solve for x
    x = 49,219,914.38/8,118.98
  6. Step 6: Final answer
    x = 6,062.33

Related Problems

Find fourth proportional to 4,059.49, 5,602.11 and 2,196.49
Half scale
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Double scale
Find fourth proportional to 8,119.98, 11,205.60 and 4,393.98
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.