Home / 13,127.26-19,690.88-3,893.26

Finding the Fourth Proportional to 13,127.26, 19,690.88 and 3,893.26

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Solution

The fourth proportional to 13,127.26, 19,690.88 and 3,893.26 is: 5,839.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.26 : 19,690.88 = 3,893.26 : x
  2. Step 2: Convert to fraction form
    13,127.26/19,690.88 = 3,893.26/x
  3. Step 3: Cross multiply
    13,127.26x = 19,690.88 × 3,893.26
  4. Step 4: Simplify right side
    13,127.26x = 76,661,715.47
  5. Step 5: Solve for x
    x = 76,661,715.47/13,127.26
  6. Step 6: Final answer
    x = 5,839.89

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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.