Home / 6,621.60-9,932.64-5,465.28

Finding the Fourth Proportional to 6,621.60, 9,932.64 and 5,465.28

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Solution

The fourth proportional to 6,621.60, 9,932.64 and 5,465.28 is: 8,198.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.60 : 9,932.64 = 5,465.28 : x
  2. Step 2: Convert to fraction form
    6,621.60/9,932.64 = 5,465.28/x
  3. Step 3: Cross multiply
    6,621.60x = 9,932.64 × 5,465.28
  4. Step 4: Simplify right side
    6,621.60x = 54,284,658.74
  5. Step 5: Solve for x
    x = 54,284,658.74/6,621.60
  6. Step 6: Final answer
    x = 8,198.12

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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.