Home / 8,150.87-12,214.32-4,815.69

Finding the Fourth Proportional to 8,150.87, 12,214.32 and 4,815.69

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Solution

The fourth proportional to 8,150.87, 12,214.32 and 4,815.69 is: 7,216.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,150.87 : 12,214.32 = 4,815.69 : x
  2. Step 2: Convert to fraction form
    8,150.87/12,214.32 = 4,815.69/x
  3. Step 3: Cross multiply
    8,150.87x = 12,214.32 × 4,815.69
  4. Step 4: Simplify right side
    8,150.87x = 58,820,378.68
  5. Step 5: Solve for x
    x = 58,820,378.68/8,150.87
  6. Step 6: Final answer
    x = 7,216.46

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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.