Home / 6,209.60-9,320.56-5,511.36

Finding the Fourth Proportional to 6,209.60, 9,320.56 and 5,511.36

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Solution

The fourth proportional to 6,209.60, 9,320.56 and 5,511.36 is: 8,272.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,209.60 : 9,320.56 = 5,511.36 : x
  2. Step 2: Convert to fraction form
    6,209.60/9,320.56 = 5,511.36/x
  3. Step 3: Cross multiply
    6,209.60x = 9,320.56 × 5,511.36
  4. Step 4: Simplify right side
    6,209.60x = 51,368,961.56
  5. Step 5: Solve for x
    x = 51,368,961.56/6,209.60
  6. Step 6: Final answer
    x = 8,272.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.