Home / 8,121.56-11,206.62-4,536.09

Finding the Fourth Proportional to 8,121.56, 11,206.62 and 4,536.09

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Solution

The fourth proportional to 8,121.56, 11,206.62 and 4,536.09 is: 6,259.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.56 : 11,206.62 = 4,536.09 : x
  2. Step 2: Convert to fraction form
    8,121.56/11,206.62 = 4,536.09/x
  3. Step 3: Cross multiply
    8,121.56x = 11,206.62 × 4,536.09
  4. Step 4: Simplify right side
    8,121.56x = 50,834,236.92
  5. Step 5: Solve for x
    x = 50,834,236.92/8,121.56
  6. Step 6: Final answer
    x = 6,259.18

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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.