Home / 9,639.21-13,305.78-6,282.84

Finding the Fourth Proportional to 9,639.21, 13,305.78 and 6,282.84

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Solution

The fourth proportional to 9,639.21, 13,305.78 and 6,282.84 is: 8,672.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639.21 : 13,305.78 = 6,282.84 : x
  2. Step 2: Convert to fraction form
    9,639.21/13,305.78 = 6,282.84/x
  3. Step 3: Cross multiply
    9,639.21x = 13,305.78 × 6,282.84
  4. Step 4: Simplify right side
    9,639.21x = 83,598,086.82
  5. Step 5: Solve for x
    x = 83,598,086.82/9,639.21
  6. Step 6: Final answer
    x = 8,672.71

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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.