Home / 10,836.86-16,245.56-3,909.74

Finding the Fourth Proportional to 10,836.86, 16,245.56 and 3,909.74

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Solution

The fourth proportional to 10,836.86, 16,245.56 and 3,909.74 is: 5,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,836.86 : 16,245.56 = 3,909.74 : x
  2. Step 2: Convert to fraction form
    10,836.86/16,245.56 = 3,909.74/x
  3. Step 3: Cross multiply
    10,836.86x = 16,245.56 × 3,909.74
  4. Step 4: Simplify right side
    10,836.86x = 63,515,915.75
  5. Step 5: Solve for x
    x = 63,515,915.75/10,836.86
  6. Step 6: Final answer
    x = 5,861.10

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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.