Home / 13,186.97-19,781.10-4,302.29

Finding the Fourth Proportional to 13,186.97, 19,781.10 and 4,302.29

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Solution

The fourth proportional to 13,186.97, 19,781.10 and 4,302.29 is: 6,453.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.97 : 19,781.10 = 4,302.29 : x
  2. Step 2: Convert to fraction form
    13,186.97/19,781.10 = 4,302.29/x
  3. Step 3: Cross multiply
    13,186.97x = 19,781.10 × 4,302.29
  4. Step 4: Simplify right side
    13,186.97x = 85,103,913.68
  5. Step 5: Solve for x
    x = 85,103,913.68/13,186.97
  6. Step 6: Final answer
    x = 6,453.64

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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.