Home / 12,112.34-18,175.32-4,717.31

Finding the Fourth Proportional to 12,112.34, 18,175.32 and 4,717.31

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Solution

The fourth proportional to 12,112.34, 18,175.32 and 4,717.31 is: 7,078.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.34 : 18,175.32 = 4,717.31 : x
  2. Step 2: Convert to fraction form
    12,112.34/18,175.32 = 4,717.31/x
  3. Step 3: Cross multiply
    12,112.34x = 18,175.32 × 4,717.31
  4. Step 4: Simplify right side
    12,112.34x = 85,738,527.91
  5. Step 5: Solve for x
    x = 85,738,527.91/12,112.34
  6. Step 6: Final answer
    x = 7,078.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.