Home / 10,878.95-16,318.42-3,087.56

Finding the Fourth Proportional to 10,878.95, 16,318.42 and 3,087.56

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Solution

The fourth proportional to 10,878.95, 16,318.42 and 3,087.56 is: 4,631.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.95 : 16,318.42 = 3,087.56 : x
  2. Step 2: Convert to fraction form
    10,878.95/16,318.42 = 3,087.56/x
  3. Step 3: Cross multiply
    10,878.95x = 16,318.42 × 3,087.56
  4. Step 4: Simplify right side
    10,878.95x = 50,384,011.54
  5. Step 5: Solve for x
    x = 50,384,011.54/10,878.95
  6. Step 6: Final answer
    x = 4,631.33

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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.