Home / 13,197.86-19,790.60-7,652.78

Finding the Fourth Proportional to 13,197.86, 19,790.60 and 7,652.78

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Solution

The fourth proportional to 13,197.86, 19,790.60 and 7,652.78 is: 11,475.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.86 : 19,790.60 = 7,652.78 : x
  2. Step 2: Convert to fraction form
    13,197.86/19,790.60 = 7,652.78/x
  3. Step 3: Cross multiply
    13,197.86x = 19,790.60 × 7,652.78
  4. Step 4: Simplify right side
    13,197.86x = 151,453,107.87
  5. Step 5: Solve for x
    x = 151,453,107.87/13,197.86
  6. Step 6: Final answer
    x = 11,475.58

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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.