Home / 18,983.92-26,207.40-13,018

Finding the Fourth Proportional to 18,983.92, 26,207.40 and 13,018

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Solution

The fourth proportional to 18,983.92, 26,207.40 and 13,018 is: 17,971.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.92 : 26,207.40 = 13,018 : x
  2. Step 2: Convert to fraction form
    18,983.92/26,207.40 = 13,018/x
  3. Step 3: Cross multiply
    18,983.92x = 26,207.40 × 13,018
  4. Step 4: Simplify right side
    18,983.92x = 341,167,933.20
  5. Step 5: Solve for x
    x = 341,167,933.20/18,983.92
  6. Step 6: Final answer
    x = 17,971.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.