Home / 21,663.36-29,895.20-11,727.36

Finding the Fourth Proportional to 21,663.36, 29,895.20 and 11,727.36

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Solution

The fourth proportional to 21,663.36, 29,895.20 and 11,727.36 is: 16,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,663.36 : 29,895.20 = 11,727.36 : x
  2. Step 2: Convert to fraction form
    21,663.36/29,895.20 = 11,727.36/x
  3. Step 3: Cross multiply
    21,663.36x = 29,895.20 × 11,727.36
  4. Step 4: Simplify right side
    21,663.36x = 350,591,772.67
  5. Step 5: Solve for x
    x = 350,591,772.67/21,663.36
  6. Step 6: Final answer
    x = 16,183.63

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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.