Home / 18,902.08-28,372.96-9,049.60

Finding the Fourth Proportional to 18,902.08, 28,372.96 and 9,049.60

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Solution

The fourth proportional to 18,902.08, 28,372.96 and 9,049.60 is: 13,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902.08 : 28,372.96 = 9,049.60 : x
  2. Step 2: Convert to fraction form
    18,902.08/28,372.96 = 9,049.60/x
  3. Step 3: Cross multiply
    18,902.08x = 28,372.96 × 9,049.60
  4. Step 4: Simplify right side
    18,902.08x = 256,763,938.82
  5. Step 5: Solve for x
    x = 256,763,938.82/18,902.08
  6. Step 6: Final answer
    x = 13,583.90

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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.