Home / 17,820.30-26,709.78-6,719.88

Finding the Fourth Proportional to 17,820.30, 26,709.78 and 6,719.88

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Solution

The fourth proportional to 17,820.30, 26,709.78 and 6,719.88 is: 10,072.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,820.30 : 26,709.78 = 6,719.88 : x
  2. Step 2: Convert to fraction form
    17,820.30/26,709.78 = 6,719.88/x
  3. Step 3: Cross multiply
    17,820.30x = 26,709.78 × 6,719.88
  4. Step 4: Simplify right side
    17,820.30x = 179,486,516.43
  5. Step 5: Solve for x
    x = 179,486,516.43/17,820.30
  6. Step 6: Final answer
    x = 10,072.03

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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.