Home / 10,453.23-15,678.63-3,879.54

Finding the Fourth Proportional to 10,453.23, 15,678.63 and 3,879.54

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Solution

The fourth proportional to 10,453.23, 15,678.63 and 3,879.54 is: 5,818.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,453.23 : 15,678.63 = 3,879.54 : x
  2. Step 2: Convert to fraction form
    10,453.23/15,678.63 = 3,879.54/x
  3. Step 3: Cross multiply
    10,453.23x = 15,678.63 × 3,879.54
  4. Step 4: Simplify right side
    10,453.23x = 60,825,872.23
  5. Step 5: Solve for x
    x = 60,825,872.23/10,453.23
  6. Step 6: Final answer
    x = 5,818.86

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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.