Home / 8,464.24-12,697.80-2,621.20

Finding the Fourth Proportional to 8,464.24, 12,697.80 and 2,621.20

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Solution

The fourth proportional to 8,464.24, 12,697.80 and 2,621.20 is: 3,932.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,464.24 : 12,697.80 = 2,621.20 : x
  2. Step 2: Convert to fraction form
    8,464.24/12,697.80 = 2,621.20/x
  3. Step 3: Cross multiply
    8,464.24x = 12,697.80 × 2,621.20
  4. Step 4: Simplify right side
    8,464.24x = 33,283,473.36
  5. Step 5: Solve for x
    x = 33,283,473.36/8,464.24
  6. Step 6: Final answer
    x = 3,932.25

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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.