Home / 19,137.63-28,704.89-12,097.11

Finding the Fourth Proportional to 19,137.63, 28,704.89 and 12,097.11

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Solution

The fourth proportional to 19,137.63, 28,704.89 and 12,097.11 is: 18,144.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,137.63 : 28,704.89 = 12,097.11 : x
  2. Step 2: Convert to fraction form
    19,137.63/28,704.89 = 12,097.11/x
  3. Step 3: Cross multiply
    19,137.63x = 28,704.89 × 12,097.11
  4. Step 4: Simplify right side
    19,137.63x = 347,246,242.11
  5. Step 5: Solve for x
    x = 347,246,242.11/19,137.63
  6. Step 6: Final answer
    x = 18,144.68

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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.