Home / 11,239.73-15,504.60-7,887.54

Finding the Fourth Proportional to 11,239.73, 15,504.60 and 7,887.54

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Solution

The fourth proportional to 11,239.73, 15,504.60 and 7,887.54 is: 10,880.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.73 : 15,504.60 = 7,887.54 : x
  2. Step 2: Convert to fraction form
    11,239.73/15,504.60 = 7,887.54/x
  3. Step 3: Cross multiply
    11,239.73x = 15,504.60 × 7,887.54
  4. Step 4: Simplify right side
    11,239.73x = 122,293,113.25
  5. Step 5: Solve for x
    x = 122,293,113.25/11,239.73
  6. Step 6: Final answer
    x = 10,880.44

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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.