Home / 18,375.48-27,569.70-6,689.88

Finding the Fourth Proportional to 18,375.48, 27,569.70 and 6,689.88

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Solution

The fourth proportional to 18,375.48, 27,569.70 and 6,689.88 is: 10,037.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.48 : 27,569.70 = 6,689.88 : x
  2. Step 2: Convert to fraction form
    18,375.48/27,569.70 = 6,689.88/x
  3. Step 3: Cross multiply
    18,375.48x = 27,569.70 × 6,689.88
  4. Step 4: Simplify right side
    18,375.48x = 184,437,984.64
  5. Step 5: Solve for x
    x = 184,437,984.64/18,375.48
  6. Step 6: Final answer
    x = 10,037.18

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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.