Home / 9,109.94-13,664.91-5,211.62

Finding the Fourth Proportional to 9,109.94, 13,664.91 and 5,211.62

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Solution

The fourth proportional to 9,109.94, 13,664.91 and 5,211.62 is: 7,817.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.94 : 13,664.91 = 5,211.62 : x
  2. Step 2: Convert to fraction form
    9,109.94/13,664.91 = 5,211.62/x
  3. Step 3: Cross multiply
    9,109.94x = 13,664.91 × 5,211.62
  4. Step 4: Simplify right side
    9,109.94x = 71,216,269.47
  5. Step 5: Solve for x
    x = 71,216,269.47/9,109.94
  6. Step 6: Final answer
    x = 7,817.42

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1.5x scale

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.