Home / 8,147.68-12,208.64-6,193.92

Finding the Fourth Proportional to 8,147.68, 12,208.64 and 6,193.92

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Solution

The fourth proportional to 8,147.68, 12,208.64 and 6,193.92 is: 9,281.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.68 : 12,208.64 = 6,193.92 : x
  2. Step 2: Convert to fraction form
    8,147.68/12,208.64 = 6,193.92/x
  3. Step 3: Cross multiply
    8,147.68x = 12,208.64 × 6,193.92
  4. Step 4: Simplify right side
    8,147.68x = 75,619,339.47
  5. Step 5: Solve for x
    x = 75,619,339.47/8,147.68
  6. Step 6: Final answer
    x = 9,281.09

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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.