Home / 8,178.37-12,272.92-4,483.21

Finding the Fourth Proportional to 8,178.37, 12,272.92 and 4,483.21

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Solution

The fourth proportional to 8,178.37, 12,272.92 and 4,483.21 is: 6,727.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.37 : 12,272.92 = 4,483.21 : x
  2. Step 2: Convert to fraction form
    8,178.37/12,272.92 = 4,483.21/x
  3. Step 3: Cross multiply
    8,178.37x = 12,272.92 × 4,483.21
  4. Step 4: Simplify right side
    8,178.37x = 55,022,077.67
  5. Step 5: Solve for x
    x = 55,022,077.67/8,178.37
  6. Step 6: Final answer
    x = 6,727.76

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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.