Home / 8,470.17-12,706.50-3,207.12

Finding the Fourth Proportional to 8,470.17, 12,706.50 and 3,207.12

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Solution

The fourth proportional to 8,470.17, 12,706.50 and 3,207.12 is: 4,811.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.17 : 12,706.50 = 3,207.12 : x
  2. Step 2: Convert to fraction form
    8,470.17/12,706.50 = 3,207.12/x
  3. Step 3: Cross multiply
    8,470.17x = 12,706.50 × 3,207.12
  4. Step 4: Simplify right side
    8,470.17x = 40,751,270.28
  5. Step 5: Solve for x
    x = 40,751,270.28/8,470.17
  6. Step 6: Final answer
    x = 4,811.15

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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.