Home / 8,168.42-11,272.19-4,631.61

Finding the Fourth Proportional to 8,168.42, 11,272.19 and 4,631.61

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Solution

The fourth proportional to 8,168.42, 11,272.19 and 4,631.61 is: 6,391.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.42 : 11,272.19 = 4,631.61 : x
  2. Step 2: Convert to fraction form
    8,168.42/11,272.19 = 4,631.61/x
  3. Step 3: Cross multiply
    8,168.42x = 11,272.19 × 4,631.61
  4. Step 4: Simplify right side
    8,168.42x = 52,208,364.77
  5. Step 5: Solve for x
    x = 52,208,364.77/8,168.42
  6. Step 6: Final answer
    x = 6,391.49

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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.