Home / 18,688.77-28,037.66-7,002.09

Finding the Fourth Proportional to 18,688.77, 28,037.66 and 7,002.09

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Solution

The fourth proportional to 18,688.77, 28,037.66 and 7,002.09 is: 10,504.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.77 : 28,037.66 = 7,002.09 : x
  2. Step 2: Convert to fraction form
    18,688.77/28,037.66 = 7,002.09/x
  3. Step 3: Cross multiply
    18,688.77x = 28,037.66 × 7,002.09
  4. Step 4: Simplify right side
    18,688.77x = 196,322,183.70
  5. Step 5: Solve for x
    x = 196,322,183.70/18,688.77
  6. Step 6: Final answer
    x = 10,504.82

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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.