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Finding the Fourth Proportional to 6,644.40, 9,976.20 and 5,012.40

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Solution

The fourth proportional to 6,644.40, 9,976.20 and 5,012.40 is: 7,525.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,644.40 : 9,976.20 = 5,012.40 : x
  2. Step 2: Convert to fraction form
    6,644.40/9,976.20 = 5,012.40/x
  3. Step 3: Cross multiply
    6,644.40x = 9,976.20 × 5,012.40
  4. Step 4: Simplify right side
    6,644.40x = 50,004,704.88
  5. Step 5: Solve for x
    x = 50,004,704.88/6,644.40
  6. Step 6: Final answer
    x = 7,525.84

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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.