Home / 9,986.62-13,782.17-5,739.04

Finding the Fourth Proportional to 9,986.62, 13,782.17 and 5,739.04

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Solution

The fourth proportional to 9,986.62, 13,782.17 and 5,739.04 is: 7,920.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.62 : 13,782.17 = 5,739.04 : x
  2. Step 2: Convert to fraction form
    9,986.62/13,782.17 = 5,739.04/x
  3. Step 3: Cross multiply
    9,986.62x = 13,782.17 × 5,739.04
  4. Step 4: Simplify right side
    9,986.62x = 79,096,396.22
  5. Step 5: Solve for x
    x = 79,096,396.22/9,986.62
  6. Step 6: Final answer
    x = 7,920.24

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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.