Home / 11,883.90-16,399.31-6,578.61

Finding the Fourth Proportional to 11,883.90, 16,399.31 and 6,578.61

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Solution

The fourth proportional to 11,883.90, 16,399.31 and 6,578.61 is: 9,078.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,883.90 : 16,399.31 = 6,578.61 : x
  2. Step 2: Convert to fraction form
    11,883.90/16,399.31 = 6,578.61/x
  3. Step 3: Cross multiply
    11,883.90x = 16,399.31 × 6,578.61
  4. Step 4: Simplify right side
    11,883.90x = 107,884,664.76
  5. Step 5: Solve for x
    x = 107,884,664.76/11,883.90
  6. Step 6: Final answer
    x = 9,078.22

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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.