Home / 11,939.12-17,905.08-5,012.08

Finding the Fourth Proportional to 11,939.12, 17,905.08 and 5,012.08

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Solution

The fourth proportional to 11,939.12, 17,905.08 and 5,012.08 is: 7,516.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.12 : 17,905.08 = 5,012.08 : x
  2. Step 2: Convert to fraction form
    11,939.12/17,905.08 = 5,012.08/x
  3. Step 3: Cross multiply
    11,939.12x = 17,905.08 × 5,012.08
  4. Step 4: Simplify right side
    11,939.12x = 89,741,693.37
  5. Step 5: Solve for x
    x = 89,741,693.37/11,939.12
  6. Step 6: Final answer
    x = 7,516.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.