Home / 6,939.81-10,408.23-2,009.61

Finding the Fourth Proportional to 6,939.81, 10,408.23 and 2,009.61

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Solution

The fourth proportional to 6,939.81, 10,408.23 and 2,009.61 is: 3,013.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.81 : 10,408.23 = 2,009.61 : x
  2. Step 2: Convert to fraction form
    6,939.81/10,408.23 = 2,009.61/x
  3. Step 3: Cross multiply
    6,939.81x = 10,408.23 × 2,009.61
  4. Step 4: Simplify right side
    6,939.81x = 20,916,483.09
  5. Step 5: Solve for x
    x = 20,916,483.09/6,939.81
  6. Step 6: Final answer
    x = 3,013.98

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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.