Home / 18,974.72-28,462.66-4,934.45

Finding the Fourth Proportional to 18,974.72, 28,462.66 and 4,934.45

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Solution

The fourth proportional to 18,974.72, 28,462.66 and 4,934.45 is: 7,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.72 : 28,462.66 = 4,934.45 : x
  2. Step 2: Convert to fraction form
    18,974.72/28,462.66 = 4,934.45/x
  3. Step 3: Cross multiply
    18,974.72x = 28,462.66 × 4,934.45
  4. Step 4: Simplify right side
    18,974.72x = 140,447,631.46
  5. Step 5: Solve for x
    x = 140,447,631.46/18,974.72
  6. Step 6: Final answer
    x = 7,401.83

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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.