Home / 17,872.30-26,799.74-5,390

Finding the Fourth Proportional to 17,872.30, 26,799.74 and 5,390

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Solution

The fourth proportional to 17,872.30, 26,799.74 and 5,390 is: 8,082.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,872.30 : 26,799.74 = 5,390 : x
  2. Step 2: Convert to fraction form
    17,872.30/26,799.74 = 5,390/x
  3. Step 3: Cross multiply
    17,872.30x = 26,799.74 × 5,390
  4. Step 4: Simplify right side
    17,872.30x = 144,450,598.60
  5. Step 5: Solve for x
    x = 144,450,598.60/17,872.30
  6. Step 6: Final answer
    x = 8,082.37

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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.