Home / 7,113.06-10,666.18-3,361.72

Finding the Fourth Proportional to 7,113.06, 10,666.18 and 3,361.72

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Solution

The fourth proportional to 7,113.06, 10,666.18 and 3,361.72 is: 5,040.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.06 : 10,666.18 = 3,361.72 : x
  2. Step 2: Convert to fraction form
    7,113.06/10,666.18 = 3,361.72/x
  3. Step 3: Cross multiply
    7,113.06x = 10,666.18 × 3,361.72
  4. Step 4: Simplify right side
    7,113.06x = 35,856,640.49
  5. Step 5: Solve for x
    x = 35,856,640.49/7,113.06
  6. Step 6: Final answer
    x = 5,040.96

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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.