Home / 18,845.50-28,268.79-4,994.50

Finding the Fourth Proportional to 18,845.50, 28,268.79 and 4,994.50

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Solution

The fourth proportional to 18,845.50, 28,268.79 and 4,994.50 is: 7,491.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845.50 : 28,268.79 = 4,994.50 : x
  2. Step 2: Convert to fraction form
    18,845.50/28,268.79 = 4,994.50/x
  3. Step 3: Cross multiply
    18,845.50x = 28,268.79 × 4,994.50
  4. Step 4: Simplify right side
    18,845.50x = 141,188,471.66
  5. Step 5: Solve for x
    x = 141,188,471.66/18,845.50
  6. Step 6: Final answer
    x = 7,491.89

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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.