Home / 19,152.11-28,731.68-8,622.38

Finding the Fourth Proportional to 19,152.11, 28,731.68 and 8,622.38

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Solution

The fourth proportional to 19,152.11, 28,731.68 and 8,622.38 is: 12,935.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152.11 : 28,731.68 = 8,622.38 : x
  2. Step 2: Convert to fraction form
    19,152.11/28,731.68 = 8,622.38/x
  3. Step 3: Cross multiply
    19,152.11x = 28,731.68 × 8,622.38
  4. Step 4: Simplify right side
    19,152.11x = 247,735,556.38
  5. Step 5: Solve for x
    x = 247,735,556.38/19,152.11
  6. Step 6: Final answer
    x = 12,935.16

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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.