Home / 11,511.36-15,881.76-6,792.48

Finding the Fourth Proportional to 11,511.36, 15,881.76 and 6,792.48

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Solution

The fourth proportional to 11,511.36, 15,881.76 and 6,792.48 is: 9,371.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.36 : 15,881.76 = 6,792.48 : x
  2. Step 2: Convert to fraction form
    11,511.36/15,881.76 = 6,792.48/x
  3. Step 3: Cross multiply
    11,511.36x = 15,881.76 × 6,792.48
  4. Step 4: Simplify right side
    11,511.36x = 107,876,537.16
  5. Step 5: Solve for x
    x = 107,876,537.16/11,511.36
  6. Step 6: Final answer
    x = 9,371.31

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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.