Home / 12,726.05-19,091.50-3,960.63

Finding the Fourth Proportional to 12,726.05, 19,091.50 and 3,960.63

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Solution

The fourth proportional to 12,726.05, 19,091.50 and 3,960.63 is: 5,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.05 : 19,091.50 = 3,960.63 : x
  2. Step 2: Convert to fraction form
    12,726.05/19,091.50 = 3,960.63/x
  3. Step 3: Cross multiply
    12,726.05x = 19,091.50 × 3,960.63
  4. Step 4: Simplify right side
    12,726.05x = 75,614,357.74
  5. Step 5: Solve for x
    x = 75,614,357.74/12,726.05
  6. Step 6: Final answer
    x = 5,941.70

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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.