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Finding the Fourth Proportional to 8,146.58, 12,228.98 and 7,611.22

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Solution

The fourth proportional to 8,146.58, 12,228.98 and 7,611.22 is: 11,425.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,146.58 : 12,228.98 = 7,611.22 : x
  2. Step 2: Convert to fraction form
    8,146.58/12,228.98 = 7,611.22/x
  3. Step 3: Cross multiply
    8,146.58x = 12,228.98 × 7,611.22
  4. Step 4: Simplify right side
    8,146.58x = 93,077,365.60
  5. Step 5: Solve for x
    x = 93,077,365.60/8,146.58
  6. Step 6: Final answer
    x = 11,425.34

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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.