Home / 8,418.46-11,621.64-6,525.76

Finding the Fourth Proportional to 8,418.46, 11,621.64 and 6,525.76

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Solution

The fourth proportional to 8,418.46, 11,621.64 and 6,525.76 is: 9,008.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.46 : 11,621.64 = 6,525.76 : x
  2. Step 2: Convert to fraction form
    8,418.46/11,621.64 = 6,525.76/x
  3. Step 3: Cross multiply
    8,418.46x = 11,621.64 × 6,525.76
  4. Step 4: Simplify right side
    8,418.46x = 75,840,033.45
  5. Step 5: Solve for x
    x = 75,840,033.45/8,418.46
  6. Step 6: Final answer
    x = 9,008.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.