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Finding the Fourth Proportional to 11,739.40, 17,609.06 and 7,798.34

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Solution

The fourth proportional to 11,739.40, 17,609.06 and 7,798.34 is: 11,697.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,739.40 : 17,609.06 = 7,798.34 : x
  2. Step 2: Convert to fraction form
    11,739.40/17,609.06 = 7,798.34/x
  3. Step 3: Cross multiply
    11,739.40x = 17,609.06 × 7,798.34
  4. Step 4: Simplify right side
    11,739.40x = 137,321,500.48
  5. Step 5: Solve for x
    x = 137,321,500.48/11,739.40
  6. Step 6: Final answer
    x = 11,697.49

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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.