Home / 18,941.05-28,414.76-5,790.34

Finding the Fourth Proportional to 18,941.05, 28,414.76 and 5,790.34

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Solution

The fourth proportional to 18,941.05, 28,414.76 and 5,790.34 is: 8,686.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.05 : 28,414.76 = 5,790.34 : x
  2. Step 2: Convert to fraction form
    18,941.05/28,414.76 = 5,790.34/x
  3. Step 3: Cross multiply
    18,941.05x = 28,414.76 × 5,790.34
  4. Step 4: Simplify right side
    18,941.05x = 164,531,121.42
  5. Step 5: Solve for x
    x = 164,531,121.42/18,941.05
  6. Step 6: Final answer
    x = 8,686.48

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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.