Home / 8,964.32-13,448.30-3,121.39

Finding the Fourth Proportional to 8,964.32, 13,448.30 and 3,121.39

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Solution

The fourth proportional to 8,964.32, 13,448.30 and 3,121.39 is: 4,682.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.32 : 13,448.30 = 3,121.39 : x
  2. Step 2: Convert to fraction form
    8,964.32/13,448.30 = 3,121.39/x
  3. Step 3: Cross multiply
    8,964.32x = 13,448.30 × 3,121.39
  4. Step 4: Simplify right side
    8,964.32x = 41,977,341.03
  5. Step 5: Solve for x
    x = 41,977,341.03/8,964.32
  6. Step 6: Final answer
    x = 4,682.71

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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.