Home / 7,622.13-11,422.83-4,661.64

Finding the Fourth Proportional to 7,622.13, 11,422.83 and 4,661.64

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Solution

The fourth proportional to 7,622.13, 11,422.83 and 4,661.64 is: 6,986.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.13 : 11,422.83 = 4,661.64 : x
  2. Step 2: Convert to fraction form
    7,622.13/11,422.83 = 4,661.64/x
  3. Step 3: Cross multiply
    7,622.13x = 11,422.83 × 4,661.64
  4. Step 4: Simplify right side
    7,622.13x = 53,249,121.24
  5. Step 5: Solve for x
    x = 53,249,121.24/7,622.13
  6. Step 6: Final answer
    x = 6,986.12

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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.