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Finding the Fourth Proportional to 18,600.86, 27,901.50 and 5,453.50

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Solution

The fourth proportional to 18,600.86, 27,901.50 and 5,453.50 is: 8,180.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.86 : 27,901.50 = 5,453.50 : x
  2. Step 2: Convert to fraction form
    18,600.86/27,901.50 = 5,453.50/x
  3. Step 3: Cross multiply
    18,600.86x = 27,901.50 × 5,453.50
  4. Step 4: Simplify right side
    18,600.86x = 152,160,780.95
  5. Step 5: Solve for x
    x = 152,160,780.95/18,600.86
  6. Step 6: Final answer
    x = 8,180.31

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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.