Home / 8,168.58-11,272.64-4,631.79

Finding the Fourth Proportional to 8,168.58, 11,272.64 and 4,631.79

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Solution

The fourth proportional to 8,168.58, 11,272.64 and 4,631.79 is: 6,391.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.58 : 11,272.64 = 4,631.79 : x
  2. Step 2: Convert to fraction form
    8,168.58/11,272.64 = 4,631.79/x
  3. Step 3: Cross multiply
    8,168.58x = 11,272.64 × 4,631.79
  4. Step 4: Simplify right side
    8,168.58x = 52,212,501.23
  5. Step 5: Solve for x
    x = 52,212,501.23/8,168.58
  6. Step 6: Final answer
    x = 6,391.87

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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.