Home / 13,872.24-20,804.63-6,469.47

Finding the Fourth Proportional to 13,872.24, 20,804.63 and 6,469.47

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Solution

The fourth proportional to 13,872.24, 20,804.63 and 6,469.47 is: 9,702.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.24 : 20,804.63 = 6,469.47 : x
  2. Step 2: Convert to fraction form
    13,872.24/20,804.63 = 6,469.47/x
  3. Step 3: Cross multiply
    13,872.24x = 20,804.63 × 6,469.47
  4. Step 4: Simplify right side
    13,872.24x = 134,594,897.30
  5. Step 5: Solve for x
    x = 134,594,897.30/13,872.24
  6. Step 6: Final answer
    x = 9,702.46

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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.