Home / 18,852.35-28,270.76-8,179.38

Finding the Fourth Proportional to 18,852.35, 28,270.76 and 8,179.38

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Solution

The fourth proportional to 18,852.35, 28,270.76 and 8,179.38 is: 12,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,852.35 : 28,270.76 = 8,179.38 : x
  2. Step 2: Convert to fraction form
    18,852.35/28,270.76 = 8,179.38/x
  3. Step 3: Cross multiply
    18,852.35x = 28,270.76 × 8,179.38
  4. Step 4: Simplify right side
    18,852.35x = 231,237,248.03
  5. Step 5: Solve for x
    x = 231,237,248.03/18,852.35
  6. Step 6: Final answer
    x = 12,265.70

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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.