Home / 7,889.24-11,829.26-3,211.50

Finding the Fourth Proportional to 7,889.24, 11,829.26 and 3,211.50

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Solution

The fourth proportional to 7,889.24, 11,829.26 and 3,211.50 is: 4,815.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.24 : 11,829.26 = 3,211.50 : x
  2. Step 2: Convert to fraction form
    7,889.24/11,829.26 = 3,211.50/x
  3. Step 3: Cross multiply
    7,889.24x = 11,829.26 × 3,211.50
  4. Step 4: Simplify right side
    7,889.24x = 37,989,668.49
  5. Step 5: Solve for x
    x = 37,989,668.49/7,889.24
  6. Step 6: Final answer
    x = 4,815.38

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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.