Home / 8,522.85-12,785.79-3,525.21

Finding the Fourth Proportional to 8,522.85, 12,785.79 and 3,525.21

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Solution

The fourth proportional to 8,522.85, 12,785.79 and 3,525.21 is: 5,288.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,522.85 : 12,785.79 = 3,525.21 : x
  2. Step 2: Convert to fraction form
    8,522.85/12,785.79 = 3,525.21/x
  3. Step 3: Cross multiply
    8,522.85x = 12,785.79 × 3,525.21
  4. Step 4: Simplify right side
    8,522.85x = 45,072,594.77
  5. Step 5: Solve for x
    x = 45,072,594.77/8,522.85
  6. Step 6: Final answer
    x = 5,288.44

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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.