Home / 18,834.08-28,241.36-7,738.72

Finding the Fourth Proportional to 18,834.08, 28,241.36 and 7,738.72

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Solution

The fourth proportional to 18,834.08, 28,241.36 and 7,738.72 is: 11,604.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.08 : 28,241.36 = 7,738.72 : x
  2. Step 2: Convert to fraction form
    18,834.08/28,241.36 = 7,738.72/x
  3. Step 3: Cross multiply
    18,834.08x = 28,241.36 × 7,738.72
  4. Step 4: Simplify right side
    18,834.08x = 218,551,977.46
  5. Step 5: Solve for x
    x = 218,551,977.46/18,834.08
  6. Step 6: Final answer
    x = 11,604.07

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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.