Home / 17,712.16-26,506.50-12,791.68

Finding the Fourth Proportional to 17,712.16, 26,506.50 and 12,791.68

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Solution

The fourth proportional to 17,712.16, 26,506.50 and 12,791.68 is: 19,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,712.16 : 26,506.50 = 12,791.68 : x
  2. Step 2: Convert to fraction form
    17,712.16/26,506.50 = 12,791.68/x
  3. Step 3: Cross multiply
    17,712.16x = 26,506.50 × 12,791.68
  4. Step 4: Simplify right side
    17,712.16x = 339,062,665.92
  5. Step 5: Solve for x
    x = 339,062,665.92/17,712.16
  6. Step 6: Final answer
    x = 19,142.93

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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.