Home / 12,311.55-18,466.60-7,377.84

Finding the Fourth Proportional to 12,311.55, 18,466.60 and 7,377.84

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Solution

The fourth proportional to 12,311.55, 18,466.60 and 7,377.84 is: 11,066.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311.55 : 18,466.60 = 7,377.84 : x
  2. Step 2: Convert to fraction form
    12,311.55/18,466.60 = 7,377.84/x
  3. Step 3: Cross multiply
    12,311.55x = 18,466.60 × 7,377.84
  4. Step 4: Simplify right side
    12,311.55x = 136,243,620.14
  5. Step 5: Solve for x
    x = 136,243,620.14/12,311.55
  6. Step 6: Final answer
    x = 11,066.33

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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.