Home / 13,786.32-20,679.74-3,925.86

Finding the Fourth Proportional to 13,786.32, 20,679.74 and 3,925.86

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Solution

The fourth proportional to 13,786.32, 20,679.74 and 3,925.86 is: 5,888.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.32 : 20,679.74 = 3,925.86 : x
  2. Step 2: Convert to fraction form
    13,786.32/20,679.74 = 3,925.86/x
  3. Step 3: Cross multiply
    13,786.32x = 20,679.74 × 3,925.86
  4. Step 4: Simplify right side
    13,786.32x = 81,185,744.45
  5. Step 5: Solve for x
    x = 81,185,744.45/13,786.32
  6. Step 6: Final answer
    x = 5,888.86

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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.