Home / 9,345.15-14,021.73-3,105.99

Finding the Fourth Proportional to 9,345.15, 14,021.73 and 3,105.99

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Solution

The fourth proportional to 9,345.15, 14,021.73 and 3,105.99 is: 4,660.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.15 : 14,021.73 = 3,105.99 : x
  2. Step 2: Convert to fraction form
    9,345.15/14,021.73 = 3,105.99/x
  3. Step 3: Cross multiply
    9,345.15x = 14,021.73 × 3,105.99
  4. Step 4: Simplify right side
    9,345.15x = 43,551,353.16
  5. Step 5: Solve for x
    x = 43,551,353.16/9,345.15
  6. Step 6: Final answer
    x = 4,660.32

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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.