Home / 12,613.26-17,405.94-7,236.60

Finding the Fourth Proportional to 12,613.26, 17,405.94 and 7,236.60

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Solution

The fourth proportional to 12,613.26, 17,405.94 and 7,236.60 is: 9,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,613.26 : 17,405.94 = 7,236.60 : x
  2. Step 2: Convert to fraction form
    12,613.26/17,405.94 = 7,236.60/x
  3. Step 3: Cross multiply
    12,613.26x = 17,405.94 × 7,236.60
  4. Step 4: Simplify right side
    12,613.26x = 125,959,825.40
  5. Step 5: Solve for x
    x = 125,959,825.40/12,613.26
  6. Step 6: Final answer
    x = 9,986.30

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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.