Home / 8,964.57-13,446.93-3,121.17

Finding the Fourth Proportional to 8,964.57, 13,446.93 and 3,121.17

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Solution

The fourth proportional to 8,964.57, 13,446.93 and 3,121.17 is: 4,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.57 : 13,446.93 = 3,121.17 : x
  2. Step 2: Convert to fraction form
    8,964.57/13,446.93 = 3,121.17/x
  3. Step 3: Cross multiply
    8,964.57x = 13,446.93 × 3,121.17
  4. Step 4: Simplify right side
    8,964.57x = 41,970,154.51
  5. Step 5: Solve for x
    x = 41,970,154.51/8,964.57
  6. Step 6: Final answer
    x = 4,681.78

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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.