Home / 8,668.04-12,994.14-3,120.11

Finding the Fourth Proportional to 8,668.04, 12,994.14 and 3,120.11

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Solution

The fourth proportional to 8,668.04, 12,994.14 and 3,120.11 is: 4,677.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668.04 : 12,994.14 = 3,120.11 : x
  2. Step 2: Convert to fraction form
    8,668.04/12,994.14 = 3,120.11/x
  3. Step 3: Cross multiply
    8,668.04x = 12,994.14 × 3,120.11
  4. Step 4: Simplify right side
    8,668.04x = 40,543,163.04
  5. Step 5: Solve for x
    x = 40,543,163.04/8,668.04
  6. Step 6: Final answer
    x = 4,677.32

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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.