Home / 11,922.16-16,450.80-6,616.96

Finding the Fourth Proportional to 11,922.16, 16,450.80 and 6,616.96

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Solution

The fourth proportional to 11,922.16, 16,450.80 and 6,616.96 is: 9,130.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.16 : 16,450.80 = 6,616.96 : x
  2. Step 2: Convert to fraction form
    11,922.16/16,450.80 = 6,616.96/x
  3. Step 3: Cross multiply
    11,922.16x = 16,450.80 × 6,616.96
  4. Step 4: Simplify right side
    11,922.16x = 108,854,285.57
  5. Step 5: Solve for x
    x = 108,854,285.57/11,922.16
  6. Step 6: Final answer
    x = 9,130.42

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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.