Home / 11,556.10-17,372.82-9,120.28

Finding the Fourth Proportional to 11,556.10, 17,372.82 and 9,120.28

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Solution

The fourth proportional to 11,556.10, 17,372.82 and 9,120.28 is: 13,710.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,556.10 : 17,372.82 = 9,120.28 : x
  2. Step 2: Convert to fraction form
    11,556.10/17,372.82 = 9,120.28/x
  3. Step 3: Cross multiply
    11,556.10x = 17,372.82 × 9,120.28
  4. Step 4: Simplify right side
    11,556.10x = 158,444,982.79
  5. Step 5: Solve for x
    x = 158,444,982.79/11,556.10
  6. Step 6: Final answer
    x = 13,710.94

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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.