Home / 15,923.54-21,975.21-8,849.54

Finding the Fourth Proportional to 15,923.54, 21,975.21 and 8,849.54

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Solution

The fourth proportional to 15,923.54, 21,975.21 and 8,849.54 is: 12,212.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,923.54 : 21,975.21 = 8,849.54 : x
  2. Step 2: Convert to fraction form
    15,923.54/21,975.21 = 8,849.54/x
  3. Step 3: Cross multiply
    15,923.54x = 21,975.21 × 8,849.54
  4. Step 4: Simplify right side
    15,923.54x = 194,470,390.03
  5. Step 5: Solve for x
    x = 194,470,390.03/15,923.54
  6. Step 6: Final answer
    x = 12,212.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.