Home / 11,943.30-16,481.40-6,637.80

Finding the Fourth Proportional to 11,943.30, 16,481.40 and 6,637.80

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Solution

The fourth proportional to 11,943.30, 16,481.40 and 6,637.80 is: 9,159.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.30 : 16,481.40 = 6,637.80 : x
  2. Step 2: Convert to fraction form
    11,943.30/16,481.40 = 6,637.80/x
  3. Step 3: Cross multiply
    11,943.30x = 16,481.40 × 6,637.80
  4. Step 4: Simplify right side
    11,943.30x = 109,400,236.92
  5. Step 5: Solve for x
    x = 109,400,236.92/11,943.30
  6. Step 6: Final answer
    x = 9,159.97

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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.