Home / 7,805.47-11,714.36-3,425.95

Finding the Fourth Proportional to 7,805.47, 11,714.36 and 3,425.95

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Solution

The fourth proportional to 7,805.47, 11,714.36 and 3,425.95 is: 5,141.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,805.47 : 11,714.36 = 3,425.95 : x
  2. Step 2: Convert to fraction form
    7,805.47/11,714.36 = 3,425.95/x
  3. Step 3: Cross multiply
    7,805.47x = 11,714.36 × 3,425.95
  4. Step 4: Simplify right side
    7,805.47x = 40,132,811.64
  5. Step 5: Solve for x
    x = 40,132,811.64/7,805.47
  6. Step 6: Final answer
    x = 5,141.63

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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.