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Finding the Fourth Proportional to 19,100.84, 28,651.24 and 8,012.74

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Solution

The fourth proportional to 19,100.84, 28,651.24 and 8,012.74 is: 12,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,100.84 : 28,651.24 = 8,012.74 : x
  2. Step 2: Convert to fraction form
    19,100.84/28,651.24 = 8,012.74/x
  3. Step 3: Cross multiply
    19,100.84x = 28,651.24 × 8,012.74
  4. Step 4: Simplify right side
    19,100.84x = 229,574,936.80
  5. Step 5: Solve for x
    x = 229,574,936.80/19,100.84
  6. Step 6: Final answer
    x = 12,019.10

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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.