Home / 11,161.56-15,401.28-6,684.36

Finding the Fourth Proportional to 11,161.56, 15,401.28 and 6,684.36

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Solution

The fourth proportional to 11,161.56, 15,401.28 and 6,684.36 is: 9,223.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.56 : 15,401.28 = 6,684.36 : x
  2. Step 2: Convert to fraction form
    11,161.56/15,401.28 = 6,684.36/x
  3. Step 3: Cross multiply
    11,161.56x = 15,401.28 × 6,684.36
  4. Step 4: Simplify right side
    11,161.56x = 102,947,699.98
  5. Step 5: Solve for x
    x = 102,947,699.98/11,161.56
  6. Step 6: Final answer
    x = 9,223.42

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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.