Home / 11,236.85-15,511.82-7,259.90

Finding the Fourth Proportional to 11,236.85, 15,511.82 and 7,259.90

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Solution

The fourth proportional to 11,236.85, 15,511.82 and 7,259.90 is: 10,021.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.85 : 15,511.82 = 7,259.90 : x
  2. Step 2: Convert to fraction form
    11,236.85/15,511.82 = 7,259.90/x
  3. Step 3: Cross multiply
    11,236.85x = 15,511.82 × 7,259.90
  4. Step 4: Simplify right side
    11,236.85x = 112,614,262.02
  5. Step 5: Solve for x
    x = 112,614,262.02/11,236.85
  6. Step 6: Final answer
    x = 10,021.87

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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.