Home / 18,977.92-26,199.12-13,012

Finding the Fourth Proportional to 18,977.92, 26,199.12 and 13,012

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Solution

The fourth proportional to 18,977.92, 26,199.12 and 13,012 is: 17,963.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.92 : 26,199.12 = 13,012 : x
  2. Step 2: Convert to fraction form
    18,977.92/26,199.12 = 13,012/x
  3. Step 3: Cross multiply
    18,977.92x = 26,199.12 × 13,012
  4. Step 4: Simplify right side
    18,977.92x = 340,902,949.44
  5. Step 5: Solve for x
    x = 340,902,949.44/18,977.92
  6. Step 6: Final answer
    x = 17,963.14

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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.