Home / 8,103.87-12,155.58-4,429.38

Finding the Fourth Proportional to 8,103.87, 12,155.58 and 4,429.38

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Solution

The fourth proportional to 8,103.87, 12,155.58 and 4,429.38 is: 6,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.87 : 12,155.58 = 4,429.38 : x
  2. Step 2: Convert to fraction form
    8,103.87/12,155.58 = 4,429.38/x
  3. Step 3: Cross multiply
    8,103.87x = 12,155.58 × 4,429.38
  4. Step 4: Simplify right side
    8,103.87x = 53,841,682.94
  5. Step 5: Solve for x
    x = 53,841,682.94/8,103.87
  6. Step 6: Final answer
    x = 6,643.95

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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.