Home / 6,599.20-9,886.80-5,221.60

Finding the Fourth Proportional to 6,599.20, 9,886.80 and 5,221.60

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Solution

The fourth proportional to 6,599.20, 9,886.80 and 5,221.60 is: 7,822.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,599.20 : 9,886.80 = 5,221.60 : x
  2. Step 2: Convert to fraction form
    6,599.20/9,886.80 = 5,221.60/x
  3. Step 3: Cross multiply
    6,599.20x = 9,886.80 × 5,221.60
  4. Step 4: Simplify right side
    6,599.20x = 51,624,914.88
  5. Step 5: Solve for x
    x = 51,624,914.88/6,599.20
  6. Step 6: Final answer
    x = 7,822.91

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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.