Home / 17,865.79-26,790-5,383.48

Finding the Fourth Proportional to 17,865.79, 26,790 and 5,383.48

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Solution

The fourth proportional to 17,865.79, 26,790 and 5,383.48 is: 8,072.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,865.79 : 26,790 = 5,383.48 : x
  2. Step 2: Convert to fraction form
    17,865.79/26,790 = 5,383.48/x
  3. Step 3: Cross multiply
    17,865.79x = 26,790 × 5,383.48
  4. Step 4: Simplify right side
    17,865.79x = 144,223,429.20
  5. Step 5: Solve for x
    x = 144,223,429.20/17,865.79
  6. Step 6: Final answer
    x = 8,072.60

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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.