Home / 11,105.13-16,655.94-3,312.12

Finding the Fourth Proportional to 11,105.13, 16,655.94 and 3,312.12

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Solution

The fourth proportional to 11,105.13, 16,655.94 and 3,312.12 is: 4,967.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.13 : 16,655.94 = 3,312.12 : x
  2. Step 2: Convert to fraction form
    11,105.13/16,655.94 = 3,312.12/x
  3. Step 3: Cross multiply
    11,105.13x = 16,655.94 × 3,312.12
  4. Step 4: Simplify right side
    11,105.13x = 55,166,471.99
  5. Step 5: Solve for x
    x = 55,166,471.99/11,105.13
  6. Step 6: Final answer
    x = 4,967.66

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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.