Home / 10,620.56-15,931.34-3,226.08

Finding the Fourth Proportional to 10,620.56, 15,931.34 and 3,226.08

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Solution

The fourth proportional to 10,620.56, 15,931.34 and 3,226.08 is: 4,839.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.56 : 15,931.34 = 3,226.08 : x
  2. Step 2: Convert to fraction form
    10,620.56/15,931.34 = 3,226.08/x
  3. Step 3: Cross multiply
    10,620.56x = 15,931.34 × 3,226.08
  4. Step 4: Simplify right side
    10,620.56x = 51,395,777.35
  5. Step 5: Solve for x
    x = 51,395,777.35/10,620.56
  6. Step 6: Final answer
    x = 4,839.27

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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.