Home / 10,455.36-15,673.04-3,879.76

Finding the Fourth Proportional to 10,455.36, 15,673.04 and 3,879.76

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Solution

The fourth proportional to 10,455.36, 15,673.04 and 3,879.76 is: 5,815.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.36 : 15,673.04 = 3,879.76 : x
  2. Step 2: Convert to fraction form
    10,455.36/15,673.04 = 3,879.76/x
  3. Step 3: Cross multiply
    10,455.36x = 15,673.04 × 3,879.76
  4. Step 4: Simplify right side
    10,455.36x = 60,807,633.67
  5. Step 5: Solve for x
    x = 60,807,633.67/10,455.36
  6. Step 6: Final answer
    x = 5,815.93

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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.