Home / 8,148.12-11,243.82-4,611.72

Finding the Fourth Proportional to 8,148.12, 11,243.82 and 4,611.72

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Solution

The fourth proportional to 8,148.12, 11,243.82 and 4,611.72 is: 6,363.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.12 : 11,243.82 = 4,611.72 : x
  2. Step 2: Convert to fraction form
    8,148.12/11,243.82 = 4,611.72/x
  3. Step 3: Cross multiply
    8,148.12x = 11,243.82 × 4,611.72
  4. Step 4: Simplify right side
    8,148.12x = 51,853,349.57
  5. Step 5: Solve for x
    x = 51,853,349.57/8,148.12
  6. Step 6: Final answer
    x = 6,363.84

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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.