Home / 11,161.36-15,398.22-6,685.36

Finding the Fourth Proportional to 11,161.36, 15,398.22 and 6,685.36

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Solution

The fourth proportional to 11,161.36, 15,398.22 and 6,685.36 is: 9,223.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.36 : 15,398.22 = 6,685.36 : x
  2. Step 2: Convert to fraction form
    11,161.36/15,398.22 = 6,685.36/x
  3. Step 3: Cross multiply
    11,161.36x = 15,398.22 × 6,685.36
  4. Step 4: Simplify right side
    11,161.36x = 102,942,644.06
  5. Step 5: Solve for x
    x = 102,942,644.06/11,161.36
  6. Step 6: Final answer
    x = 9,223.13

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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.