Home / 9,118.12-12,588.60-6,608.38

Finding the Fourth Proportional to 9,118.12, 12,588.60 and 6,608.38

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Solution

The fourth proportional to 9,118.12, 12,588.60 and 6,608.38 is: 9,123.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.12 : 12,588.60 = 6,608.38 : x
  2. Step 2: Convert to fraction form
    9,118.12/12,588.60 = 6,608.38/x
  3. Step 3: Cross multiply
    9,118.12x = 12,588.60 × 6,608.38
  4. Step 4: Simplify right side
    9,118.12x = 83,190,252.47
  5. Step 5: Solve for x
    x = 83,190,252.47/9,118.12
  6. Step 6: Final answer
    x = 9,123.62

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Half scale
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Double scale
Find fourth proportional to 9,119.12, 12,589.98 and 6,609.38
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.