Home / 13,768.20-20,653.16-3,908.25

Finding the Fourth Proportional to 13,768.20, 20,653.16 and 3,908.25

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Solution

The fourth proportional to 13,768.20, 20,653.16 and 3,908.25 is: 5,862.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.20 : 20,653.16 = 3,908.25 : x
  2. Step 2: Convert to fraction form
    13,768.20/20,653.16 = 3,908.25/x
  3. Step 3: Cross multiply
    13,768.20x = 20,653.16 × 3,908.25
  4. Step 4: Simplify right side
    13,768.20x = 80,717,693.03
  5. Step 5: Solve for x
    x = 80,717,693.03/13,768.20
  6. Step 6: Final answer
    x = 5,862.62

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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.