Home / 19,172.28-28,758.38-8,629.96

Finding the Fourth Proportional to 19,172.28, 28,758.38 and 8,629.96

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Solution

The fourth proportional to 19,172.28, 28,758.38 and 8,629.96 is: 12,944.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172.28 : 28,758.38 = 8,629.96 : x
  2. Step 2: Convert to fraction form
    19,172.28/28,758.38 = 8,629.96/x
  3. Step 3: Cross multiply
    19,172.28x = 28,758.38 × 8,629.96
  4. Step 4: Simplify right side
    19,172.28x = 248,183,669.06
  5. Step 5: Solve for x
    x = 248,183,669.06/19,172.28
  6. Step 6: Final answer
    x = 12,944.92

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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.