Home / 11,556.60-17,321.40-6,630.90

Finding the Fourth Proportional to 11,556.60, 17,321.40 and 6,630.90

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Solution

The fourth proportional to 11,556.60, 17,321.40 and 6,630.90 is: 9,938.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,556.60 : 17,321.40 = 6,630.90 : x
  2. Step 2: Convert to fraction form
    11,556.60/17,321.40 = 6,630.90/x
  3. Step 3: Cross multiply
    11,556.60x = 17,321.40 × 6,630.90
  4. Step 4: Simplify right side
    11,556.60x = 114,856,471.26
  5. Step 5: Solve for x
    x = 114,856,471.26/11,556.60
  6. Step 6: Final answer
    x = 9,938.60

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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.