Home / 18,934.14-28,398.13-8,938.87

Finding the Fourth Proportional to 18,934.14, 28,398.13 and 8,938.87

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Solution

The fourth proportional to 18,934.14, 28,398.13 and 8,938.87 is: 13,406.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.14 : 28,398.13 = 8,938.87 : x
  2. Step 2: Convert to fraction form
    18,934.14/28,398.13 = 8,938.87/x
  3. Step 3: Cross multiply
    18,934.14x = 28,398.13 × 8,938.87
  4. Step 4: Simplify right side
    18,934.14x = 253,847,087.63
  5. Step 5: Solve for x
    x = 253,847,087.63/18,934.14
  6. Step 6: Final answer
    x = 13,406.85

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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.