Home / 18,902.82-28,358.45-5,756.21

Finding the Fourth Proportional to 18,902.82, 28,358.45 and 5,756.21

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Solution

The fourth proportional to 18,902.82, 28,358.45 and 5,756.21 is: 8,635.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902.82 : 28,358.45 = 5,756.21 : x
  2. Step 2: Convert to fraction form
    18,902.82/28,358.45 = 5,756.21/x
  3. Step 3: Cross multiply
    18,902.82x = 28,358.45 × 5,756.21
  4. Step 4: Simplify right side
    18,902.82x = 163,237,342.73
  5. Step 5: Solve for x
    x = 163,237,342.73/18,902.82
  6. Step 6: Final answer
    x = 8,635.61

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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.