Home / 18,523.90-27,784.86-5,197.80

Finding the Fourth Proportional to 18,523.90, 27,784.86 and 5,197.80

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Solution

The fourth proportional to 18,523.90, 27,784.86 and 5,197.80 is: 7,796.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,523.90 : 27,784.86 = 5,197.80 : x
  2. Step 2: Convert to fraction form
    18,523.90/27,784.86 = 5,197.80/x
  3. Step 3: Cross multiply
    18,523.90x = 27,784.86 × 5,197.80
  4. Step 4: Simplify right side
    18,523.90x = 144,420,145.31
  5. Step 5: Solve for x
    x = 144,420,145.31/18,523.90
  6. Step 6: Final answer
    x = 7,796.42

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1.5x scale

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.