Home / 18,273.45-27,388.08-8,899.41

Finding the Fourth Proportional to 18,273.45, 27,388.08 and 8,899.41

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Solution

The fourth proportional to 18,273.45, 27,388.08 and 8,899.41 is: 13,338.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273.45 : 27,388.08 = 8,899.41 : x
  2. Step 2: Convert to fraction form
    18,273.45/27,388.08 = 8,899.41/x
  3. Step 3: Cross multiply
    18,273.45x = 27,388.08 × 8,899.41
  4. Step 4: Simplify right side
    18,273.45x = 243,737,753.03
  5. Step 5: Solve for x
    x = 243,737,753.03/18,273.45
  6. Step 6: Final answer
    x = 13,338.35

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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.