Home / 11,939.18-16,454.66-9,708.44

Finding the Fourth Proportional to 11,939.18, 16,454.66 and 9,708.44

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Solution

The fourth proportional to 11,939.18, 16,454.66 and 9,708.44 is: 13,380.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.18 : 16,454.66 = 9,708.44 : x
  2. Step 2: Convert to fraction form
    11,939.18/16,454.66 = 9,708.44/x
  3. Step 3: Cross multiply
    11,939.18x = 16,454.66 × 9,708.44
  4. Step 4: Simplify right side
    11,939.18x = 159,748,948.51
  5. Step 5: Solve for x
    x = 159,748,948.51/11,939.18
  6. Step 6: Final answer
    x = 13,380.23

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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.