Home / 18,966.42-28,432.22-7,277.31

Finding the Fourth Proportional to 18,966.42, 28,432.22 and 7,277.31

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Solution

The fourth proportional to 18,966.42, 28,432.22 and 7,277.31 is: 10,909.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.42 : 28,432.22 = 7,277.31 : x
  2. Step 2: Convert to fraction form
    18,966.42/28,432.22 = 7,277.31/x
  3. Step 3: Cross multiply
    18,966.42x = 28,432.22 × 7,277.31
  4. Step 4: Simplify right side
    18,966.42x = 206,910,042.54
  5. Step 5: Solve for x
    x = 206,910,042.54/18,966.42
  6. Step 6: Final answer
    x = 10,909.28

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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.