Home / 17,872.38-26,799.89-5,390.07

Finding the Fourth Proportional to 17,872.38, 26,799.89 and 5,390.07

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Solution

The fourth proportional to 17,872.38, 26,799.89 and 5,390.07 is: 8,082.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,872.38 : 26,799.89 = 5,390.07 : x
  2. Step 2: Convert to fraction form
    17,872.38/26,799.89 = 5,390.07/x
  3. Step 3: Cross multiply
    17,872.38x = 26,799.89 × 5,390.07
  4. Step 4: Simplify right side
    17,872.38x = 144,453,256.14
  5. Step 5: Solve for x
    x = 144,453,256.14/17,872.38
  6. Step 6: Final answer
    x = 8,082.49

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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.