Home / 8,179.26-11,286.87-4,643.58

Finding the Fourth Proportional to 8,179.26, 11,286.87 and 4,643.58

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Solution

The fourth proportional to 8,179.26, 11,286.87 and 4,643.58 is: 6,407.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.26 : 11,286.87 = 4,643.58 : x
  2. Step 2: Convert to fraction form
    8,179.26/11,286.87 = 4,643.58/x
  3. Step 3: Cross multiply
    8,179.26x = 11,286.87 × 4,643.58
  4. Step 4: Simplify right side
    8,179.26x = 52,411,483.79
  5. Step 5: Solve for x
    x = 52,411,483.79/8,179.26
  6. Step 6: Final answer
    x = 6,407.85

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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.