Home / 17,729.69-26,627.27-11,890.40

Finding the Fourth Proportional to 17,729.69, 26,627.27 and 11,890.40

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Solution

The fourth proportional to 17,729.69, 26,627.27 and 11,890.40 is: 17,857.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,729.69 : 26,627.27 = 11,890.40 : x
  2. Step 2: Convert to fraction form
    17,729.69/26,627.27 = 11,890.40/x
  3. Step 3: Cross multiply
    17,729.69x = 26,627.27 × 11,890.40
  4. Step 4: Simplify right side
    17,729.69x = 316,608,698.62
  5. Step 5: Solve for x
    x = 316,608,698.62/17,729.69
  6. Step 6: Final answer
    x = 17,857.55

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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.