Home / 12,905.44-19,356.72-3,546.16

Finding the Fourth Proportional to 12,905.44, 19,356.72 and 3,546.16

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Solution

The fourth proportional to 12,905.44, 19,356.72 and 3,546.16 is: 5,318.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905.44 : 19,356.72 = 3,546.16 : x
  2. Step 2: Convert to fraction form
    12,905.44/19,356.72 = 3,546.16/x
  3. Step 3: Cross multiply
    12,905.44x = 19,356.72 × 3,546.16
  4. Step 4: Simplify right side
    12,905.44x = 68,642,026.20
  5. Step 5: Solve for x
    x = 68,642,026.20/12,905.44
  6. Step 6: Final answer
    x = 5,318.84

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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.