Home / 13,350.60-20,037.78-7,115.76

Finding the Fourth Proportional to 13,350.60, 20,037.78 and 7,115.76

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Solution

The fourth proportional to 13,350.60, 20,037.78 and 7,115.76 is: 10,679.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.60 : 20,037.78 = 7,115.76 : x
  2. Step 2: Convert to fraction form
    13,350.60/20,037.78 = 7,115.76/x
  3. Step 3: Cross multiply
    13,350.60x = 20,037.78 × 7,115.76
  4. Step 4: Simplify right side
    13,350.60x = 142,584,033.41
  5. Step 5: Solve for x
    x = 142,584,033.41/13,350.60
  6. Step 6: Final answer
    x = 10,679.97

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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.