Home / 8,215.69-11,338.07-5,027.99

Finding the Fourth Proportional to 8,215.69, 11,338.07 and 5,027.99

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Solution

The fourth proportional to 8,215.69, 11,338.07 and 5,027.99 is: 6,938.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.69 : 11,338.07 = 5,027.99 : x
  2. Step 2: Convert to fraction form
    8,215.69/11,338.07 = 5,027.99/x
  3. Step 3: Cross multiply
    8,215.69x = 11,338.07 × 5,027.99
  4. Step 4: Simplify right side
    8,215.69x = 57,007,620.75
  5. Step 5: Solve for x
    x = 57,007,620.75/8,215.69
  6. Step 6: Final answer
    x = 6,938.87

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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.