Home / 10,878.42-16,317.64-3,086.22

Finding the Fourth Proportional to 10,878.42, 16,317.64 and 3,086.22

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Solution

The fourth proportional to 10,878.42, 16,317.64 and 3,086.22 is: 4,629.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.42 : 16,317.64 = 3,086.22 : x
  2. Step 2: Convert to fraction form
    10,878.42/16,317.64 = 3,086.22/x
  3. Step 3: Cross multiply
    10,878.42x = 16,317.64 × 3,086.22
  4. Step 4: Simplify right side
    10,878.42x = 50,359,826.92
  5. Step 5: Solve for x
    x = 50,359,826.92/10,878.42
  6. Step 6: Final answer
    x = 4,629.33

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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.