Home / 13,784.34-20,673.40-3,923.40

Finding the Fourth Proportional to 13,784.34, 20,673.40 and 3,923.40

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Solution

The fourth proportional to 13,784.34, 20,673.40 and 3,923.40 is: 5,884.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.34 : 20,673.40 = 3,923.40 : x
  2. Step 2: Convert to fraction form
    13,784.34/20,673.40 = 3,923.40/x
  3. Step 3: Cross multiply
    13,784.34x = 20,673.40 × 3,923.40
  4. Step 4: Simplify right side
    13,784.34x = 81,110,017.56
  5. Step 5: Solve for x
    x = 81,110,017.56/13,784.34
  6. Step 6: Final answer
    x = 5,884.21

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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.