Home / 18,375.38-27,575.34-6,688.60

Finding the Fourth Proportional to 18,375.38, 27,575.34 and 6,688.60

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Solution

The fourth proportional to 18,375.38, 27,575.34 and 6,688.60 is: 10,037.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.38 : 27,575.34 = 6,688.60 : x
  2. Step 2: Convert to fraction form
    18,375.38/27,575.34 = 6,688.60/x
  3. Step 3: Cross multiply
    18,375.38x = 27,575.34 × 6,688.60
  4. Step 4: Simplify right side
    18,375.38x = 184,440,402.66
  5. Step 5: Solve for x
    x = 184,440,402.66/18,375.38
  6. Step 6: Final answer
    x = 10,037.36

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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.