Home / 7,982.49-11,019.69-6,185.91

Finding the Fourth Proportional to 7,982.49, 11,019.69 and 6,185.91

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Solution

The fourth proportional to 7,982.49, 11,019.69 and 6,185.91 is: 8,539.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.49 : 11,019.69 = 6,185.91 : x
  2. Step 2: Convert to fraction form
    7,982.49/11,019.69 = 6,185.91/x
  3. Step 3: Cross multiply
    7,982.49x = 11,019.69 × 6,185.91
  4. Step 4: Simplify right side
    7,982.49x = 68,166,810.57
  5. Step 5: Solve for x
    x = 68,166,810.57/7,982.49
  6. Step 6: Final answer
    x = 8,539.54

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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.