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Finding the Fourth Proportional to 8,443.67, 11,652.78 and 4,859.78

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Solution

The fourth proportional to 8,443.67, 11,652.78 and 4,859.78 is: 6,706.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.67 : 11,652.78 = 4,859.78 : x
  2. Step 2: Convert to fraction form
    8,443.67/11,652.78 = 4,859.78/x
  3. Step 3: Cross multiply
    8,443.67x = 11,652.78 × 4,859.78
  4. Step 4: Simplify right side
    8,443.67x = 56,629,947.19
  5. Step 5: Solve for x
    x = 56,629,947.19/8,443.67
  6. Step 6: Final answer
    x = 6,706.79

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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.