Home / 6,678.36-9,215.73-3,693.99

Finding the Fourth Proportional to 6,678.36, 9,215.73 and 3,693.99

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Solution

The fourth proportional to 6,678.36, 9,215.73 and 3,693.99 is: 5,097.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.36 : 9,215.73 = 3,693.99 : x
  2. Step 2: Convert to fraction form
    6,678.36/9,215.73 = 3,693.99/x
  3. Step 3: Cross multiply
    6,678.36x = 9,215.73 × 3,693.99
  4. Step 4: Simplify right side
    6,678.36x = 34,042,814.46
  5. Step 5: Solve for x
    x = 34,042,814.46/6,678.36
  6. Step 6: Final answer
    x = 5,097.48

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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.