Home / 8,859.21-13,286.99-3,925.70

Finding the Fourth Proportional to 8,859.21, 13,286.99 and 3,925.70

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Solution

The fourth proportional to 8,859.21, 13,286.99 and 3,925.70 is: 5,887.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.21 : 13,286.99 = 3,925.70 : x
  2. Step 2: Convert to fraction form
    8,859.21/13,286.99 = 3,925.70/x
  3. Step 3: Cross multiply
    8,859.21x = 13,286.99 × 3,925.70
  4. Step 4: Simplify right side
    8,859.21x = 52,160,804.59
  5. Step 5: Solve for x
    x = 52,160,804.59/8,859.21
  6. Step 6: Final answer
    x = 5,887.75

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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.