Home / 12,440.36-17,162.46-8,241.32

Finding the Fourth Proportional to 12,440.36, 17,162.46 and 8,241.32

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Solution

The fourth proportional to 12,440.36, 17,162.46 and 8,241.32 is: 11,369.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.36 : 17,162.46 = 8,241.32 : x
  2. Step 2: Convert to fraction form
    12,440.36/17,162.46 = 8,241.32/x
  3. Step 3: Cross multiply
    12,440.36x = 17,162.46 × 8,241.32
  4. Step 4: Simplify right side
    12,440.36x = 141,441,324.85
  5. Step 5: Solve for x
    x = 141,441,324.85/12,440.36
  6. Step 6: Final answer
    x = 11,369.55

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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.