Home / 11,631.15-16,045.33-6,912.09

Finding the Fourth Proportional to 11,631.15, 16,045.33 and 6,912.09

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Solution

The fourth proportional to 11,631.15, 16,045.33 and 6,912.09 is: 9,535.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,631.15 : 16,045.33 = 6,912.09 : x
  2. Step 2: Convert to fraction form
    11,631.15/16,045.33 = 6,912.09/x
  3. Step 3: Cross multiply
    11,631.15x = 16,045.33 × 6,912.09
  4. Step 4: Simplify right side
    11,631.15x = 110,906,765.04
  5. Step 5: Solve for x
    x = 110,906,765.04/11,631.15
  6. Step 6: Final answer
    x = 9,535.32

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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.