Home / 13,829.43-19,084.82-7,861.23

Finding the Fourth Proportional to 13,829.43, 19,084.82 and 7,861.23

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Solution

The fourth proportional to 13,829.43, 19,084.82 and 7,861.23 is: 10,848.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.43 : 19,084.82 = 7,861.23 : x
  2. Step 2: Convert to fraction form
    13,829.43/19,084.82 = 7,861.23/x
  3. Step 3: Cross multiply
    13,829.43x = 19,084.82 × 7,861.23
  4. Step 4: Simplify right side
    13,829.43x = 150,030,120.22
  5. Step 5: Solve for x
    x = 150,030,120.22/13,829.43
  6. Step 6: Final answer
    x = 10,848.61

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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.