Home / 19,276.09-28,910.13-7,425.79

Finding the Fourth Proportional to 19,276.09, 28,910.13 and 7,425.79

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Solution

The fourth proportional to 19,276.09, 28,910.13 and 7,425.79 is: 11,137.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276.09 : 28,910.13 = 7,425.79 : x
  2. Step 2: Convert to fraction form
    19,276.09/28,910.13 = 7,425.79/x
  3. Step 3: Cross multiply
    19,276.09x = 28,910.13 × 7,425.79
  4. Step 4: Simplify right side
    19,276.09x = 214,680,658.52
  5. Step 5: Solve for x
    x = 214,680,658.52/19,276.09
  6. Step 6: Final answer
    x = 11,137.15

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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.