Home / 12,644.93-18,972.30-5,247.50

Finding the Fourth Proportional to 12,644.93, 18,972.30 and 5,247.50

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Solution

The fourth proportional to 12,644.93, 18,972.30 and 5,247.50 is: 7,873.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.93 : 18,972.30 = 5,247.50 : x
  2. Step 2: Convert to fraction form
    12,644.93/18,972.30 = 5,247.50/x
  3. Step 3: Cross multiply
    12,644.93x = 18,972.30 × 5,247.50
  4. Step 4: Simplify right side
    12,644.93x = 99,557,144.25
  5. Step 5: Solve for x
    x = 99,557,144.25/12,644.93
  6. Step 6: Final answer
    x = 7,873.29

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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.