Home / 13,857.66-20,783.99-3,994.52

Finding the Fourth Proportional to 13,857.66, 20,783.99 and 3,994.52

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Solution

The fourth proportional to 13,857.66, 20,783.99 and 3,994.52 is: 5,991.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.66 : 20,783.99 = 3,994.52 : x
  2. Step 2: Convert to fraction form
    13,857.66/20,783.99 = 3,994.52/x
  3. Step 3: Cross multiply
    13,857.66x = 20,783.99 × 3,994.52
  4. Step 4: Simplify right side
    13,857.66x = 83,021,939.84
  5. Step 5: Solve for x
    x = 83,021,939.84/13,857.66
  6. Step 6: Final answer
    x = 5,991.05

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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.