Home / 7,426.11-11,140.89-2,161.25

Finding the Fourth Proportional to 7,426.11, 11,140.89 and 2,161.25

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Solution

The fourth proportional to 7,426.11, 11,140.89 and 2,161.25 is: 3,242.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,426.11 : 11,140.89 = 2,161.25 : x
  2. Step 2: Convert to fraction form
    7,426.11/11,140.89 = 2,161.25/x
  3. Step 3: Cross multiply
    7,426.11x = 11,140.89 × 2,161.25
  4. Step 4: Simplify right side
    7,426.11x = 24,078,238.64
  5. Step 5: Solve for x
    x = 24,078,238.64/7,426.11
  6. Step 6: Final answer
    x = 3,242.37

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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.