Home / 7,679.13-11,521.94-3,783.57

Finding the Fourth Proportional to 7,679.13, 11,521.94 and 3,783.57

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Solution

The fourth proportional to 7,679.13, 11,521.94 and 3,783.57 is: 5,676.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.13 : 11,521.94 = 3,783.57 : x
  2. Step 2: Convert to fraction form
    7,679.13/11,521.94 = 3,783.57/x
  3. Step 3: Cross multiply
    7,679.13x = 11,521.94 × 3,783.57
  4. Step 4: Simplify right side
    7,679.13x = 43,594,047.61
  5. Step 5: Solve for x
    x = 43,594,047.61/7,679.13
  6. Step 6: Final answer
    x = 5,676.95

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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.