Home / 8,299.86-12,447.63-3,908.58

Finding the Fourth Proportional to 8,299.86, 12,447.63 and 3,908.58

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Solution

The fourth proportional to 8,299.86, 12,447.63 and 3,908.58 is: 5,861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,299.86 : 12,447.63 = 3,908.58 : x
  2. Step 2: Convert to fraction form
    8,299.86/12,447.63 = 3,908.58/x
  3. Step 3: Cross multiply
    8,299.86x = 12,447.63 × 3,908.58
  4. Step 4: Simplify right side
    8,299.86x = 48,652,557.67
  5. Step 5: Solve for x
    x = 48,652,557.67/8,299.86
  6. Step 6: Final answer
    x = 5,861.85

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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.