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Finding the Fourth Proportional to 14,102.20, 19,469.99 and 8,804.80

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Solution

The fourth proportional to 14,102.20, 19,469.99 and 8,804.80 is: 12,156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,102.20 : 19,469.99 = 8,804.80 : x
  2. Step 2: Convert to fraction form
    14,102.20/19,469.99 = 8,804.80/x
  3. Step 3: Cross multiply
    14,102.20x = 19,469.99 × 8,804.80
  4. Step 4: Simplify right side
    14,102.20x = 171,429,367.95
  5. Step 5: Solve for x
    x = 171,429,367.95/14,102.20
  6. Step 6: Final answer
    x = 12,156.21

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1.5x scale

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.