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Finding the Fourth Proportional to 8,641.00, 11,924.39 and 4,812.61

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Solution

The fourth proportional to 8,641.00, 11,924.39 and 4,812.61 is: 6,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,641.00 : 11,924.39 = 4,812.61 : x
  2. Step 2: Convert to fraction form
    8,641.00/11,924.39 = 4,812.61/x
  3. Step 3: Cross multiply
    8,641.00x = 11,924.39 × 4,812.61
  4. Step 4: Simplify right side
    8,641.00x = 57,387,436.22
  5. Step 5: Solve for x
    x = 57,387,436.22/8,641.00
  6. Step 6: Final answer
    x = 6,641.30

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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.