Home / 18,845.49-28,268.84-9,480.39

Finding the Fourth Proportional to 18,845.49, 28,268.84 and 9,480.39

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Solution

The fourth proportional to 18,845.49, 28,268.84 and 9,480.39 is: 14,220.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845.49 : 28,268.84 = 9,480.39 : x
  2. Step 2: Convert to fraction form
    18,845.49/28,268.84 = 9,480.39/x
  3. Step 3: Cross multiply
    18,845.49x = 28,268.84 × 9,480.39
  4. Step 4: Simplify right side
    18,845.49x = 267,999,628.05
  5. Step 5: Solve for x
    x = 267,999,628.05/18,845.49
  6. Step 6: Final answer
    x = 14,220.89

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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.