Home / 8,209.28-11,319.80-5,552.12

Finding the Fourth Proportional to 8,209.28, 11,319.80 and 5,552.12

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Solution

The fourth proportional to 8,209.28, 11,319.80 and 5,552.12 is: 7,655.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209.28 : 11,319.80 = 5,552.12 : x
  2. Step 2: Convert to fraction form
    8,209.28/11,319.80 = 5,552.12/x
  3. Step 3: Cross multiply
    8,209.28x = 11,319.80 × 5,552.12
  4. Step 4: Simplify right side
    8,209.28x = 62,848,887.98
  5. Step 5: Solve for x
    x = 62,848,887.98/8,209.28
  6. Step 6: Final answer
    x = 7,655.83

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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.