Home / 11,021.24-15,217.18-6,777.96

Finding the Fourth Proportional to 11,021.24, 15,217.18 and 6,777.96

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Solution

The fourth proportional to 11,021.24, 15,217.18 and 6,777.96 is: 9,358.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.24 : 15,217.18 = 6,777.96 : x
  2. Step 2: Convert to fraction form
    11,021.24/15,217.18 = 6,777.96/x
  3. Step 3: Cross multiply
    11,021.24x = 15,217.18 × 6,777.96
  4. Step 4: Simplify right side
    11,021.24x = 103,141,437.35
  5. Step 5: Solve for x
    x = 103,141,437.35/11,021.24
  6. Step 6: Final answer
    x = 9,358.42

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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.