Home / 8,348.11-12,525.41-3,420.07

Finding the Fourth Proportional to 8,348.11, 12,525.41 and 3,420.07

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Solution

The fourth proportional to 8,348.11, 12,525.41 and 3,420.07 is: 5,131.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.11 : 12,525.41 = 3,420.07 : x
  2. Step 2: Convert to fraction form
    8,348.11/12,525.41 = 3,420.07/x
  3. Step 3: Cross multiply
    8,348.11x = 12,525.41 × 3,420.07
  4. Step 4: Simplify right side
    8,348.11x = 42,837,761.88
  5. Step 5: Solve for x
    x = 42,837,761.88/8,348.11
  6. Step 6: Final answer
    x = 5,131.43

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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.