Home / 10,878.20-16,318.38-3,951.08

Finding the Fourth Proportional to 10,878.20, 16,318.38 and 3,951.08

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Solution

The fourth proportional to 10,878.20, 16,318.38 and 3,951.08 is: 5,927.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.20 : 16,318.38 = 3,951.08 : x
  2. Step 2: Convert to fraction form
    10,878.20/16,318.38 = 3,951.08/x
  3. Step 3: Cross multiply
    10,878.20x = 16,318.38 × 3,951.08
  4. Step 4: Simplify right side
    10,878.20x = 64,475,224.85
  5. Step 5: Solve for x
    x = 64,475,224.85/10,878.20
  6. Step 6: Final answer
    x = 5,927.01

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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.