Home / 11,943.40-16,481.91-6,638.08

Finding the Fourth Proportional to 11,943.40, 16,481.91 and 6,638.08

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Solution

The fourth proportional to 11,943.40, 16,481.91 and 6,638.08 is: 9,160.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.40 : 16,481.91 = 6,638.08 : x
  2. Step 2: Convert to fraction form
    11,943.40/16,481.91 = 6,638.08/x
  3. Step 3: Cross multiply
    11,943.40x = 16,481.91 × 6,638.08
  4. Step 4: Simplify right side
    11,943.40x = 109,408,237.13
  5. Step 5: Solve for x
    x = 109,408,237.13/11,943.40
  6. Step 6: Final answer
    x = 9,160.56

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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.