Home / 8,100.68-11,175.94-4,742.92

Finding the Fourth Proportional to 8,100.68, 11,175.94 and 4,742.92

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Solution

The fourth proportional to 8,100.68, 11,175.94 and 4,742.92 is: 6,543.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.68 : 11,175.94 = 4,742.92 : x
  2. Step 2: Convert to fraction form
    8,100.68/11,175.94 = 4,742.92/x
  3. Step 3: Cross multiply
    8,100.68x = 11,175.94 × 4,742.92
  4. Step 4: Simplify right side
    8,100.68x = 53,006,589.34
  5. Step 5: Solve for x
    x = 53,006,589.34/8,100.68
  6. Step 6: Final answer
    x = 6,543.47

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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.