Home / 10,855.41-16,282.70-3,929.91

Finding the Fourth Proportional to 10,855.41, 16,282.70 and 3,929.91

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Solution

The fourth proportional to 10,855.41, 16,282.70 and 3,929.91 is: 5,894.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.41 : 16,282.70 = 3,929.91 : x
  2. Step 2: Convert to fraction form
    10,855.41/16,282.70 = 3,929.91/x
  3. Step 3: Cross multiply
    10,855.41x = 16,282.70 × 3,929.91
  4. Step 4: Simplify right side
    10,855.41x = 63,989,545.56
  5. Step 5: Solve for x
    x = 63,989,545.56/10,855.41
  6. Step 6: Final answer
    x = 5,894.71

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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.