Home / 10,861.66-16,289.25-3,840.38

Finding the Fourth Proportional to 10,861.66, 16,289.25 and 3,840.38

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Solution

The fourth proportional to 10,861.66, 16,289.25 and 3,840.38 is: 5,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.66 : 16,289.25 = 3,840.38 : x
  2. Step 2: Convert to fraction form
    10,861.66/16,289.25 = 3,840.38/x
  3. Step 3: Cross multiply
    10,861.66x = 16,289.25 × 3,840.38
  4. Step 4: Simplify right side
    10,861.66x = 62,556,909.92
  5. Step 5: Solve for x
    x = 62,556,909.92/10,861.66
  6. Step 6: Final answer
    x = 5,759.42

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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.