Home / 8,266.20-12,392.10-4,975.80

Finding the Fourth Proportional to 8,266.20, 12,392.10 and 4,975.80

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Solution

The fourth proportional to 8,266.20, 12,392.10 and 4,975.80 is: 7,459.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.20 : 12,392.10 = 4,975.80 : x
  2. Step 2: Convert to fraction form
    8,266.20/12,392.10 = 4,975.80/x
  3. Step 3: Cross multiply
    8,266.20x = 12,392.10 × 4,975.80
  4. Step 4: Simplify right side
    8,266.20x = 61,660,611.18
  5. Step 5: Solve for x
    x = 61,660,611.18/8,266.20
  6. Step 6: Final answer
    x = 7,459.37

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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.