Home / 8,186.24-12,283.68-6,420.44

Finding the Fourth Proportional to 8,186.24, 12,283.68 and 6,420.44

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Solution

The fourth proportional to 8,186.24, 12,283.68 and 6,420.44 is: 9,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,186.24 : 12,283.68 = 6,420.44 : x
  2. Step 2: Convert to fraction form
    8,186.24/12,283.68 = 6,420.44/x
  3. Step 3: Cross multiply
    8,186.24x = 12,283.68 × 6,420.44
  4. Step 4: Simplify right side
    8,186.24x = 78,866,630.42
  5. Step 5: Solve for x
    x = 78,866,630.42/8,186.24
  6. Step 6: Final answer
    x = 9,634.05

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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.