Home / 18,548.64-27,832.10-8,688.60

Finding the Fourth Proportional to 18,548.64, 27,832.10 and 8,688.60

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Solution

The fourth proportional to 18,548.64, 27,832.10 and 8,688.60 is: 13,037.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,548.64 : 27,832.10 = 8,688.60 : x
  2. Step 2: Convert to fraction form
    18,548.64/27,832.10 = 8,688.60/x
  3. Step 3: Cross multiply
    18,548.64x = 27,832.10 × 8,688.60
  4. Step 4: Simplify right side
    18,548.64x = 241,821,940.62
  5. Step 5: Solve for x
    x = 241,821,940.62/18,548.64
  6. Step 6: Final answer
    x = 13,037.18

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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.