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Finding the Fourth Proportional to 14,291.44, 19,722.18 and 8,702.44

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Solution

The fourth proportional to 14,291.44, 19,722.18 and 8,702.44 is: 12,009.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,291.44 : 19,722.18 = 8,702.44 : x
  2. Step 2: Convert to fraction form
    14,291.44/19,722.18 = 8,702.44/x
  3. Step 3: Cross multiply
    14,291.44x = 19,722.18 × 8,702.44
  4. Step 4: Simplify right side
    14,291.44x = 171,631,071.45
  5. Step 5: Solve for x
    x = 171,631,071.45/14,291.44
  6. Step 6: Final answer
    x = 12,009.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.