Home / 11,031.30-15,220.78-6,556.54

Finding the Fourth Proportional to 11,031.30, 15,220.78 and 6,556.54

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Solution

The fourth proportional to 11,031.30, 15,220.78 and 6,556.54 is: 9,046.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.30 : 15,220.78 = 6,556.54 : x
  2. Step 2: Convert to fraction form
    11,031.30/15,220.78 = 6,556.54/x
  3. Step 3: Cross multiply
    11,031.30x = 15,220.78 × 6,556.54
  4. Step 4: Simplify right side
    11,031.30x = 99,795,652.90
  5. Step 5: Solve for x
    x = 99,795,652.90/11,031.30
  6. Step 6: Final answer
    x = 9,046.59

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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.