Home / 18,860.46-28,290.76-5,712.94

Finding the Fourth Proportional to 18,860.46, 28,290.76 and 5,712.94

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Solution

The fourth proportional to 18,860.46, 28,290.76 and 5,712.94 is: 8,569.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.46 : 28,290.76 = 5,712.94 : x
  2. Step 2: Convert to fraction form
    18,860.46/28,290.76 = 5,712.94/x
  3. Step 3: Cross multiply
    18,860.46x = 28,290.76 × 5,712.94
  4. Step 4: Simplify right side
    18,860.46x = 161,623,414.43
  5. Step 5: Solve for x
    x = 161,623,414.43/18,860.46
  6. Step 6: Final answer
    x = 8,569.43

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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.