Home / 12,661.96-18,982.66-5,271.94

Finding the Fourth Proportional to 12,661.96, 18,982.66 and 5,271.94

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Solution

The fourth proportional to 12,661.96, 18,982.66 and 5,271.94 is: 7,903.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661.96 : 18,982.66 = 5,271.94 : x
  2. Step 2: Convert to fraction form
    12,661.96/18,982.66 = 5,271.94/x
  3. Step 3: Cross multiply
    12,661.96x = 18,982.66 × 5,271.94
  4. Step 4: Simplify right side
    12,661.96x = 100,075,444.56
  5. Step 5: Solve for x
    x = 100,075,444.56/12,661.96
  6. Step 6: Final answer
    x = 7,903.63

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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.