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Finding the Fourth Proportional to 8,544.98, 12,840.56 and 8,063.84

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Solution

The fourth proportional to 8,544.98, 12,840.56 and 8,063.84 is: 12,117.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,544.98 : 12,840.56 = 8,063.84 : x
  2. Step 2: Convert to fraction form
    8,544.98/12,840.56 = 8,063.84/x
  3. Step 3: Cross multiply
    8,544.98x = 12,840.56 × 8,063.84
  4. Step 4: Simplify right side
    8,544.98x = 103,544,221.35
  5. Step 5: Solve for x
    x = 103,544,221.35/8,544.98
  6. Step 6: Final answer
    x = 12,117.55

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1.5x scale

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.