Home / 8,327.15-11,491.90-4,790.89

Finding the Fourth Proportional to 8,327.15, 11,491.90 and 4,790.89

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Solution

The fourth proportional to 8,327.15, 11,491.90 and 4,790.89 is: 6,611.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,327.15 : 11,491.90 = 4,790.89 : x
  2. Step 2: Convert to fraction form
    8,327.15/11,491.90 = 4,790.89/x
  3. Step 3: Cross multiply
    8,327.15x = 11,491.90 × 4,790.89
  4. Step 4: Simplify right side
    8,327.15x = 55,056,428.79
  5. Step 5: Solve for x
    x = 55,056,428.79/8,327.15
  6. Step 6: Final answer
    x = 6,611.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.