Home / 11,868.96-16,379.08-7,091.06

Finding the Fourth Proportional to 11,868.96, 16,379.08 and 7,091.06

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Solution

The fourth proportional to 11,868.96, 16,379.08 and 7,091.06 is: 9,785.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.96 : 16,379.08 = 7,091.06 : x
  2. Step 2: Convert to fraction form
    11,868.96/16,379.08 = 7,091.06/x
  3. Step 3: Cross multiply
    11,868.96x = 16,379.08 × 7,091.06
  4. Step 4: Simplify right side
    11,868.96x = 116,145,039.02
  5. Step 5: Solve for x
    x = 116,145,039.02/11,868.96
  6. Step 6: Final answer
    x = 9,785.61

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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.