Home / 18,835.75-28,253.63-7,748.47

Finding the Fourth Proportional to 18,835.75, 28,253.63 and 7,748.47

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Solution

The fourth proportional to 18,835.75, 28,253.63 and 7,748.47 is: 11,622.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.75 : 28,253.63 = 7,748.47 : x
  2. Step 2: Convert to fraction form
    18,835.75/28,253.63 = 7,748.47/x
  3. Step 3: Cross multiply
    18,835.75x = 28,253.63 × 7,748.47
  4. Step 4: Simplify right side
    18,835.75x = 218,922,404.45
  5. Step 5: Solve for x
    x = 218,922,404.45/18,835.75
  6. Step 6: Final answer
    x = 11,622.71

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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.