Home / 16,986.96-23,425.56-13,458.60

Finding the Fourth Proportional to 16,986.96, 23,425.56 and 13,458.60

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Solution

The fourth proportional to 16,986.96, 23,425.56 and 13,458.60 is: 18,559.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,986.96 : 23,425.56 = 13,458.60 : x
  2. Step 2: Convert to fraction form
    16,986.96/23,425.56 = 13,458.60/x
  3. Step 3: Cross multiply
    16,986.96x = 23,425.56 × 13,458.60
  4. Step 4: Simplify right side
    16,986.96x = 315,275,241.82
  5. Step 5: Solve for x
    x = 315,275,241.82/16,986.96
  6. Step 6: Final answer
    x = 18,559.84

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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.