Home / 12,057.08-18,085.61-5,485.14

Finding the Fourth Proportional to 12,057.08, 18,085.61 and 5,485.14

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Solution

The fourth proportional to 12,057.08, 18,085.61 and 5,485.14 is: 8,227.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,057.08 : 18,085.61 = 5,485.14 : x
  2. Step 2: Convert to fraction form
    12,057.08/18,085.61 = 5,485.14/x
  3. Step 3: Cross multiply
    12,057.08x = 18,085.61 × 5,485.14
  4. Step 4: Simplify right side
    12,057.08x = 99,202,116.55
  5. Step 5: Solve for x
    x = 99,202,116.55/12,057.08
  6. Step 6: Final answer
    x = 8,227.71

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Half scale
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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.