Home / 11,943.75-16,481.78-6,637.55

Finding the Fourth Proportional to 11,943.75, 16,481.78 and 6,637.55

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Solution

The fourth proportional to 11,943.75, 16,481.78 and 6,637.55 is: 9,159.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.75 : 16,481.78 = 6,637.55 : x
  2. Step 2: Convert to fraction form
    11,943.75/16,481.78 = 6,637.55/x
  3. Step 3: Cross multiply
    11,943.75x = 16,481.78 × 6,637.55
  4. Step 4: Simplify right side
    11,943.75x = 109,398,548.13
  5. Step 5: Solve for x
    x = 109,398,548.13/11,943.75
  6. Step 6: Final answer
    x = 9,159.48

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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.