Home / 7,986.54-11,020.94-4,629.10

Finding the Fourth Proportional to 7,986.54, 11,020.94 and 4,629.10

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Solution

The fourth proportional to 7,986.54, 11,020.94 and 4,629.10 is: 6,387.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.54 : 11,020.94 = 4,629.10 : x
  2. Step 2: Convert to fraction form
    7,986.54/11,020.94 = 4,629.10/x
  3. Step 3: Cross multiply
    7,986.54x = 11,020.94 × 4,629.10
  4. Step 4: Simplify right side
    7,986.54x = 51,017,033.35
  5. Step 5: Solve for x
    x = 51,017,033.35/7,986.54
  6. Step 6: Final answer
    x = 6,387.88

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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.