Home / 8,670.50-13,007.68-3,406.02

Finding the Fourth Proportional to 8,670.50, 13,007.68 and 3,406.02

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Solution

The fourth proportional to 8,670.50, 13,007.68 and 3,406.02 is: 5,109.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.50 : 13,007.68 = 3,406.02 : x
  2. Step 2: Convert to fraction form
    8,670.50/13,007.68 = 3,406.02/x
  3. Step 3: Cross multiply
    8,670.50x = 13,007.68 × 3,406.02
  4. Step 4: Simplify right side
    8,670.50x = 44,304,418.23
  5. Step 5: Solve for x
    x = 44,304,418.23/8,670.50
  6. Step 6: Final answer
    x = 5,109.79

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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.