Home / 12,516.38-18,780.95-5,942.63

Finding the Fourth Proportional to 12,516.38, 18,780.95 and 5,942.63

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Solution

The fourth proportional to 12,516.38, 18,780.95 and 5,942.63 is: 8,916.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.38 : 18,780.95 = 5,942.63 : x
  2. Step 2: Convert to fraction form
    12,516.38/18,780.95 = 5,942.63/x
  3. Step 3: Cross multiply
    12,516.38x = 18,780.95 × 5,942.63
  4. Step 4: Simplify right side
    12,516.38x = 111,608,236.90
  5. Step 5: Solve for x
    x = 111,608,236.90/12,516.38
  6. Step 6: Final answer
    x = 8,916.97

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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.