Home / 11,028.12-15,217.14-6,311.52

Finding the Fourth Proportional to 11,028.12, 15,217.14 and 6,311.52

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Solution

The fourth proportional to 11,028.12, 15,217.14 and 6,311.52 is: 8,708.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028.12 : 15,217.14 = 6,311.52 : x
  2. Step 2: Convert to fraction form
    11,028.12/15,217.14 = 6,311.52/x
  3. Step 3: Cross multiply
    11,028.12x = 15,217.14 × 6,311.52
  4. Step 4: Simplify right side
    11,028.12x = 96,043,283.45
  5. Step 5: Solve for x
    x = 96,043,283.45/11,028.12
  6. Step 6: Final answer
    x = 8,708.94

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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.