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Finding the Fourth Proportional to 8,843.88, 12,210.45 and 6,823.62

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Solution

The fourth proportional to 8,843.88, 12,210.45 and 6,823.62 is: 9,421.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,843.88 : 12,210.45 = 6,823.62 : x
  2. Step 2: Convert to fraction form
    8,843.88/12,210.45 = 6,823.62/x
  3. Step 3: Cross multiply
    8,843.88x = 12,210.45 × 6,823.62
  4. Step 4: Simplify right side
    8,843.88x = 83,319,470.83
  5. Step 5: Solve for x
    x = 83,319,470.83/8,843.88
  6. Step 6: Final answer
    x = 9,421.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.