Home / 7,671.79-11,507.69-3,286.41

Finding the Fourth Proportional to 7,671.79, 11,507.69 and 3,286.41

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Solution

The fourth proportional to 7,671.79, 11,507.69 and 3,286.41 is: 4,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671.79 : 11,507.69 = 3,286.41 : x
  2. Step 2: Convert to fraction form
    7,671.79/11,507.69 = 3,286.41/x
  3. Step 3: Cross multiply
    7,671.79x = 11,507.69 × 3,286.41
  4. Step 4: Simplify right side
    7,671.79x = 37,818,987.49
  5. Step 5: Solve for x
    x = 37,818,987.49/7,671.79
  6. Step 6: Final answer
    x = 4,929.62

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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.