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Finding the Fourth Proportional to 7,663.01, 11,485.40 and 3,499.20

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Solution

The fourth proportional to 7,663.01, 11,485.40 and 3,499.20 is: 5,244.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,663.01 : 11,485.40 = 3,499.20 : x
  2. Step 2: Convert to fraction form
    7,663.01/11,485.40 = 3,499.20/x
  3. Step 3: Cross multiply
    7,663.01x = 11,485.40 × 3,499.20
  4. Step 4: Simplify right side
    7,663.01x = 40,189,694.18
  5. Step 5: Solve for x
    x = 40,189,694.18/7,663.01
  6. Step 6: Final answer
    x = 5,244.64

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Double scale
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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.