Home / 18,617.60-27,902.64-8,735.06

Finding the Fourth Proportional to 18,617.60, 27,902.64 and 8,735.06

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Solution

The fourth proportional to 18,617.60, 27,902.64 and 8,735.06 is: 13,091.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.60 : 27,902.64 = 8,735.06 : x
  2. Step 2: Convert to fraction form
    18,617.60/27,902.64 = 8,735.06/x
  3. Step 3: Cross multiply
    18,617.60x = 27,902.64 × 8,735.06
  4. Step 4: Simplify right side
    18,617.60x = 243,731,234.56
  5. Step 5: Solve for x
    x = 243,731,234.56/18,617.60
  6. Step 6: Final answer
    x = 13,091.44

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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.