Home / 8,860.21-13,288.49-3,926.70

Finding the Fourth Proportional to 8,860.21, 13,288.49 and 3,926.70

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Solution

The fourth proportional to 8,860.21, 13,288.49 and 3,926.70 is: 5,889.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.21 : 13,288.49 = 3,926.70 : x
  2. Step 2: Convert to fraction form
    8,860.21/13,288.49 = 3,926.70/x
  3. Step 3: Cross multiply
    8,860.21x = 13,288.49 × 3,926.70
  4. Step 4: Simplify right side
    8,860.21x = 52,179,913.68
  5. Step 5: Solve for x
    x = 52,179,913.68/8,860.21
  6. Step 6: Final answer
    x = 5,889.24

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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.