Home / 17,857.90-26,743.11-12,579.94

Finding the Fourth Proportional to 17,857.90, 26,743.11 and 12,579.94

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Solution

The fourth proportional to 17,857.90, 26,743.11 and 12,579.94 is: 18,839.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.90 : 26,743.11 = 12,579.94 : x
  2. Step 2: Convert to fraction form
    17,857.90/26,743.11 = 12,579.94/x
  3. Step 3: Cross multiply
    17,857.90x = 26,743.11 × 12,579.94
  4. Step 4: Simplify right side
    17,857.90x = 336,426,719.21
  5. Step 5: Solve for x
    x = 336,426,719.21/17,857.90
  6. Step 6: Final answer
    x = 18,839.10

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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.