Home / 13,784.25-20,673.63-3,923.61

Finding the Fourth Proportional to 13,784.25, 20,673.63 and 3,923.61

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Solution

The fourth proportional to 13,784.25, 20,673.63 and 3,923.61 is: 5,884.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.25 : 20,673.63 = 3,923.61 : x
  2. Step 2: Convert to fraction form
    13,784.25/20,673.63 = 3,923.61/x
  3. Step 3: Cross multiply
    13,784.25x = 20,673.63 × 3,923.61
  4. Step 4: Simplify right side
    13,784.25x = 81,115,261.40
  5. Step 5: Solve for x
    x = 81,115,261.40/13,784.25
  6. Step 6: Final answer
    x = 5,884.63

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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.