Home / 13,521.83-18,649.83-11,636.56

Finding the Fourth Proportional to 13,521.83, 18,649.83 and 11,636.56

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Solution

The fourth proportional to 13,521.83, 18,649.83 and 11,636.56 is: 16,049.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.83 : 18,649.83 = 11,636.56 : x
  2. Step 2: Convert to fraction form
    13,521.83/18,649.83 = 11,636.56/x
  3. Step 3: Cross multiply
    13,521.83x = 18,649.83 × 11,636.56
  4. Step 4: Simplify right side
    13,521.83x = 217,019,772.54
  5. Step 5: Solve for x
    x = 217,019,772.54/13,521.83
  6. Step 6: Final answer
    x = 16,049.59

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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.