Home / 11,918.43-17,845.46-7,470.77

Finding the Fourth Proportional to 11,918.43, 17,845.46 and 7,470.77

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Solution

The fourth proportional to 11,918.43, 17,845.46 and 7,470.77 is: 11,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.43 : 17,845.46 = 7,470.77 : x
  2. Step 2: Convert to fraction form
    11,918.43/17,845.46 = 7,470.77/x
  3. Step 3: Cross multiply
    11,918.43x = 17,845.46 × 7,470.77
  4. Step 4: Simplify right side
    11,918.43x = 133,319,345.95
  5. Step 5: Solve for x
    x = 133,319,345.95/11,918.43
  6. Step 6: Final answer
    x = 11,185.98

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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.