Home / 19,144.86-28,721.34-9,662.58

Finding the Fourth Proportional to 19,144.86, 28,721.34 and 9,662.58

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Solution

The fourth proportional to 19,144.86, 28,721.34 and 9,662.58 is: 14,495.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,144.86 : 28,721.34 = 9,662.58 : x
  2. Step 2: Convert to fraction form
    19,144.86/28,721.34 = 9,662.58/x
  3. Step 3: Cross multiply
    19,144.86x = 28,721.34 × 9,662.58
  4. Step 4: Simplify right side
    19,144.86x = 277,522,245.46
  5. Step 5: Solve for x
    x = 277,522,245.46/19,144.86
  6. Step 6: Final answer
    x = 14,495.91

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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.