Home / 11,822.28-16,315.20-6,517.32

Finding the Fourth Proportional to 11,822.28, 16,315.20 and 6,517.32

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Solution

The fourth proportional to 11,822.28, 16,315.20 and 6,517.32 is: 8,994.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,822.28 : 16,315.20 = 6,517.32 : x
  2. Step 2: Convert to fraction form
    11,822.28/16,315.20 = 6,517.32/x
  3. Step 3: Cross multiply
    11,822.28x = 16,315.20 × 6,517.32
  4. Step 4: Simplify right side
    11,822.28x = 106,331,379.26
  5. Step 5: Solve for x
    x = 106,331,379.26/11,822.28
  6. Step 6: Final answer
    x = 8,994.15

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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.