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Finding the Fourth Proportional to 8,611.98, 12,924.46 and 6,901.26

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Solution

The fourth proportional to 8,611.98, 12,924.46 and 6,901.26 is: 10,357.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,611.98 : 12,924.46 = 6,901.26 : x
  2. Step 2: Convert to fraction form
    8,611.98/12,924.46 = 6,901.26/x
  3. Step 3: Cross multiply
    8,611.98x = 12,924.46 × 6,901.26
  4. Step 4: Simplify right side
    8,611.98x = 89,195,058.82
  5. Step 5: Solve for x
    x = 89,195,058.82/8,611.98
  6. Step 6: Final answer
    x = 10,357.09

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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.