Home / 10,451.82-15,685.09-4,905.35

Finding the Fourth Proportional to 10,451.82, 15,685.09 and 4,905.35

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Solution

The fourth proportional to 10,451.82, 15,685.09 and 4,905.35 is: 7,361.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,451.82 : 15,685.09 = 4,905.35 : x
  2. Step 2: Convert to fraction form
    10,451.82/15,685.09 = 4,905.35/x
  3. Step 3: Cross multiply
    10,451.82x = 15,685.09 × 4,905.35
  4. Step 4: Simplify right side
    10,451.82x = 76,940,856.23
  5. Step 5: Solve for x
    x = 76,940,856.23/10,451.82
  6. Step 6: Final answer
    x = 7,361.48

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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.