Home / 10,878.92-16,310.40-3,479.12

Finding the Fourth Proportional to 10,878.92, 16,310.40 and 3,479.12

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Solution

The fourth proportional to 10,878.92, 16,310.40 and 3,479.12 is: 5,216.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.92 : 16,310.40 = 3,479.12 : x
  2. Step 2: Convert to fraction form
    10,878.92/16,310.40 = 3,479.12/x
  3. Step 3: Cross multiply
    10,878.92x = 16,310.40 × 3,479.12
  4. Step 4: Simplify right side
    10,878.92x = 56,745,838.85
  5. Step 5: Solve for x
    x = 56,745,838.85/10,878.92
  6. Step 6: Final answer
    x = 5,216.13

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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.