Home / 13,738.26-18,963.27-8,072.91

Finding the Fourth Proportional to 13,738.26, 18,963.27 and 8,072.91

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Solution

The fourth proportional to 13,738.26, 18,963.27 and 8,072.91 is: 11,143.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.26 : 18,963.27 = 8,072.91 : x
  2. Step 2: Convert to fraction form
    13,738.26/18,963.27 = 8,072.91/x
  3. Step 3: Cross multiply
    13,738.26x = 18,963.27 × 8,072.91
  4. Step 4: Simplify right side
    13,738.26x = 153,088,772.02
  5. Step 5: Solve for x
    x = 153,088,772.02/13,738.26
  6. Step 6: Final answer
    x = 11,143.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.