Home / 11,245.23-15,508.11-7,665.54

Finding the Fourth Proportional to 11,245.23, 15,508.11 and 7,665.54

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Solution

The fourth proportional to 11,245.23, 15,508.11 and 7,665.54 is: 10,571.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.23 : 15,508.11 = 7,665.54 : x
  2. Step 2: Convert to fraction form
    11,245.23/15,508.11 = 7,665.54/x
  3. Step 3: Cross multiply
    11,245.23x = 15,508.11 × 7,665.54
  4. Step 4: Simplify right side
    11,245.23x = 118,877,965.00
  5. Step 5: Solve for x
    x = 118,877,965.00/11,245.23
  6. Step 6: Final answer
    x = 10,571.41

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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.