Home / 11,789.19-17,683.98-9,438.30

Finding the Fourth Proportional to 11,789.19, 17,683.98 and 9,438.30

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Solution

The fourth proportional to 11,789.19, 17,683.98 and 9,438.30 is: 14,157.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,789.19 : 17,683.98 = 9,438.30 : x
  2. Step 2: Convert to fraction form
    11,789.19/17,683.98 = 9,438.30/x
  3. Step 3: Cross multiply
    11,789.19x = 17,683.98 × 9,438.30
  4. Step 4: Simplify right side
    11,789.19x = 166,906,708.43
  5. Step 5: Solve for x
    x = 166,906,708.43/11,789.19
  6. Step 6: Final answer
    x = 14,157.61

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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.