Home / 11,822.50-16,315.09-6,517.20

Finding the Fourth Proportional to 11,822.50, 16,315.09 and 6,517.20

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Solution

The fourth proportional to 11,822.50, 16,315.09 and 6,517.20 is: 8,993.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,822.50 : 16,315.09 = 6,517.20 : x
  2. Step 2: Convert to fraction form
    11,822.50/16,315.09 = 6,517.20/x
  3. Step 3: Cross multiply
    11,822.50x = 16,315.09 × 6,517.20
  4. Step 4: Simplify right side
    11,822.50x = 106,328,749.44
  5. Step 5: Solve for x
    x = 106,328,749.44/11,822.50
  6. Step 6: Final answer
    x = 8,993.76

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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.