Home / 9,678.63-14,519.99-3,109.43

Finding the Fourth Proportional to 9,678.63, 14,519.99 and 3,109.43

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Solution

The fourth proportional to 9,678.63, 14,519.99 and 3,109.43 is: 4,664.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.63 : 14,519.99 = 3,109.43 : x
  2. Step 2: Convert to fraction form
    9,678.63/14,519.99 = 3,109.43/x
  3. Step 3: Cross multiply
    9,678.63x = 14,519.99 × 3,109.43
  4. Step 4: Simplify right side
    9,678.63x = 45,148,804.36
  5. Step 5: Solve for x
    x = 45,148,804.36/9,678.63
  6. Step 6: Final answer
    x = 4,664.79

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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.