Home / 9,739.44-13,439.04-5,489.76

Finding the Fourth Proportional to 9,739.44, 13,439.04 and 5,489.76

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Solution

The fourth proportional to 9,739.44, 13,439.04 and 5,489.76 is: 7,575.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,739.44 : 13,439.04 = 5,489.76 : x
  2. Step 2: Convert to fraction form
    9,739.44/13,439.04 = 5,489.76/x
  3. Step 3: Cross multiply
    9,739.44x = 13,439.04 × 5,489.76
  4. Step 4: Simplify right side
    9,739.44x = 73,777,104.23
  5. Step 5: Solve for x
    x = 73,777,104.23/9,739.44
  6. Step 6: Final answer
    x = 7,575.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.