Home / 18,825.63-28,237.53-7,729.56

Finding the Fourth Proportional to 18,825.63, 28,237.53 and 7,729.56

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Solution

The fourth proportional to 18,825.63, 28,237.53 and 7,729.56 is: 11,593.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.63 : 28,237.53 = 7,729.56 : x
  2. Step 2: Convert to fraction form
    18,825.63/28,237.53 = 7,729.56/x
  3. Step 3: Cross multiply
    18,825.63x = 28,237.53 × 7,729.56
  4. Step 4: Simplify right side
    18,825.63x = 218,263,682.39
  5. Step 5: Solve for x
    x = 218,263,682.39/18,825.63
  6. Step 6: Final answer
    x = 11,593.96

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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.