Home / 6,621.39-9,922.77-5,228.60

Finding the Fourth Proportional to 6,621.39, 9,922.77 and 5,228.60

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Solution

The fourth proportional to 6,621.39, 9,922.77 and 5,228.60 is: 7,835.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.39 : 9,922.77 = 5,228.60 : x
  2. Step 2: Convert to fraction form
    6,621.39/9,922.77 = 5,228.60/x
  3. Step 3: Cross multiply
    6,621.39x = 9,922.77 × 5,228.60
  4. Step 4: Simplify right side
    6,621.39x = 51,882,145.61
  5. Step 5: Solve for x
    x = 51,882,145.61/6,621.39
  6. Step 6: Final answer
    x = 7,835.54

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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.