Home / 7,428.12-11,140.44-2,163.12

Finding the Fourth Proportional to 7,428.12, 11,140.44 and 2,163.12

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Solution

The fourth proportional to 7,428.12, 11,140.44 and 2,163.12 is: 3,244.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.12 : 11,140.44 = 2,163.12 : x
  2. Step 2: Convert to fraction form
    7,428.12/11,140.44 = 2,163.12/x
  3. Step 3: Cross multiply
    7,428.12x = 11,140.44 × 2,163.12
  4. Step 4: Simplify right side
    7,428.12x = 24,098,108.57
  5. Step 5: Solve for x
    x = 24,098,108.57/7,428.12
  6. Step 6: Final answer
    x = 3,244.17

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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.