Home / 13,199.61-19,830.38-12,452.37

Finding the Fourth Proportional to 13,199.61, 19,830.38 and 12,452.37

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Solution

The fourth proportional to 13,199.61, 19,830.38 and 12,452.37 is: 18,707.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.61 : 19,830.38 = 12,452.37 : x
  2. Step 2: Convert to fraction form
    13,199.61/19,830.38 = 12,452.37/x
  3. Step 3: Cross multiply
    13,199.61x = 19,830.38 × 12,452.37
  4. Step 4: Simplify right side
    13,199.61x = 246,935,229.00
  5. Step 5: Solve for x
    x = 246,935,229.00/13,199.61
  6. Step 6: Final answer
    x = 18,707.77

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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.