Home / 8,740.58-13,099.18-3,188.70

Finding the Fourth Proportional to 8,740.58, 13,099.18 and 3,188.70

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Solution

The fourth proportional to 8,740.58, 13,099.18 and 3,188.70 is: 4,778.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.58 : 13,099.18 = 3,188.70 : x
  2. Step 2: Convert to fraction form
    8,740.58/13,099.18 = 3,188.70/x
  3. Step 3: Cross multiply
    8,740.58x = 13,099.18 × 3,188.70
  4. Step 4: Simplify right side
    8,740.58x = 41,769,355.27
  5. Step 5: Solve for x
    x = 41,769,355.27/8,740.58
  6. Step 6: Final answer
    x = 4,778.79

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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.