Home / 9,786.21-14,679.13-3,942.69

Finding the Fourth Proportional to 9,786.21, 14,679.13 and 3,942.69

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Solution

The fourth proportional to 9,786.21, 14,679.13 and 3,942.69 is: 5,913.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,786.21 : 14,679.13 = 3,942.69 : x
  2. Step 2: Convert to fraction form
    9,786.21/14,679.13 = 3,942.69/x
  3. Step 3: Cross multiply
    9,786.21x = 14,679.13 × 3,942.69
  4. Step 4: Simplify right side
    9,786.21x = 57,875,259.06
  5. Step 5: Solve for x
    x = 57,875,259.06/9,786.21
  6. Step 6: Final answer
    x = 5,913.96

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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.