Home / 8,318.50-12,477.70-3,386.96

Finding the Fourth Proportional to 8,318.50, 12,477.70 and 3,386.96

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Solution

The fourth proportional to 8,318.50, 12,477.70 and 3,386.96 is: 5,080.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.50 : 12,477.70 = 3,386.96 : x
  2. Step 2: Convert to fraction form
    8,318.50/12,477.70 = 3,386.96/x
  3. Step 3: Cross multiply
    8,318.50x = 12,477.70 × 3,386.96
  4. Step 4: Simplify right side
    8,318.50x = 42,261,470.79
  5. Step 5: Solve for x
    x = 42,261,470.79/8,318.50
  6. Step 6: Final answer
    x = 5,080.42

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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.