Home / 13,186.33-19,761.04-7,638.19

Finding the Fourth Proportional to 13,186.33, 19,761.04 and 7,638.19

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Solution

The fourth proportional to 13,186.33, 19,761.04 and 7,638.19 is: 11,446.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.33 : 19,761.04 = 7,638.19 : x
  2. Step 2: Convert to fraction form
    13,186.33/19,761.04 = 7,638.19/x
  3. Step 3: Cross multiply
    13,186.33x = 19,761.04 × 7,638.19
  4. Step 4: Simplify right side
    13,186.33x = 150,938,578.12
  5. Step 5: Solve for x
    x = 150,938,578.12/13,186.33
  6. Step 6: Final answer
    x = 11,446.59

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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.