Home / 12,739.42-19,109.62-6,072.48

Finding the Fourth Proportional to 12,739.42, 19,109.62 and 6,072.48

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Solution

The fourth proportional to 12,739.42, 19,109.62 and 6,072.48 is: 9,108.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.42 : 19,109.62 = 6,072.48 : x
  2. Step 2: Convert to fraction form
    12,739.42/19,109.62 = 6,072.48/x
  3. Step 3: Cross multiply
    12,739.42x = 19,109.62 × 6,072.48
  4. Step 4: Simplify right side
    12,739.42x = 116,042,785.26
  5. Step 5: Solve for x
    x = 116,042,785.26/12,739.42
  6. Step 6: Final answer
    x = 9,108.95

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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.