Home / 8,666.14-12,989.69-3,399.57

Finding the Fourth Proportional to 8,666.14, 12,989.69 and 3,399.57

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Solution

The fourth proportional to 8,666.14, 12,989.69 and 3,399.57 is: 5,095.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.14 : 12,989.69 = 3,399.57 : x
  2. Step 2: Convert to fraction form
    8,666.14/12,989.69 = 3,399.57/x
  3. Step 3: Cross multiply
    8,666.14x = 12,989.69 × 3,399.57
  4. Step 4: Simplify right side
    8,666.14x = 44,159,360.43
  5. Step 5: Solve for x
    x = 44,159,360.43/8,666.14
  6. Step 6: Final answer
    x = 5,095.62

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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.