Home / 13,121.38-19,682.24-8,707.32

Finding the Fourth Proportional to 13,121.38, 19,682.24 and 8,707.32

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Solution

The fourth proportional to 13,121.38, 19,682.24 and 8,707.32 is: 13,061.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121.38 : 19,682.24 = 8,707.32 : x
  2. Step 2: Convert to fraction form
    13,121.38/19,682.24 = 8,707.32/x
  3. Step 3: Cross multiply
    13,121.38x = 19,682.24 × 8,707.32
  4. Step 4: Simplify right side
    13,121.38x = 171,379,562.00
  5. Step 5: Solve for x
    x = 171,379,562.00/13,121.38
  6. Step 6: Final answer
    x = 13,061.09

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1.5x scale

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.