Home / 12,720.44-19,060.31-8,039.66

Finding the Fourth Proportional to 12,720.44, 19,060.31 and 8,039.66

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Solution

The fourth proportional to 12,720.44, 19,060.31 and 8,039.66 is: 12,046.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,720.44 : 19,060.31 = 8,039.66 : x
  2. Step 2: Convert to fraction form
    12,720.44/19,060.31 = 8,039.66/x
  3. Step 3: Cross multiply
    12,720.44x = 19,060.31 × 8,039.66
  4. Step 4: Simplify right side
    12,720.44x = 153,238,336.69
  5. Step 5: Solve for x
    x = 153,238,336.69/12,720.44
  6. Step 6: Final answer
    x = 12,046.62

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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.