Home / 9,104.36-12,571.07-7,111.44

Finding the Fourth Proportional to 9,104.36, 12,571.07 and 7,111.44

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Solution

The fourth proportional to 9,104.36, 12,571.07 and 7,111.44 is: 9,819.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,104.36 : 12,571.07 = 7,111.44 : x
  2. Step 2: Convert to fraction form
    9,104.36/12,571.07 = 7,111.44/x
  3. Step 3: Cross multiply
    9,104.36x = 12,571.07 × 7,111.44
  4. Step 4: Simplify right side
    9,104.36x = 89,398,374.48
  5. Step 5: Solve for x
    x = 89,398,374.48/9,104.36
  6. Step 6: Final answer
    x = 9,819.30

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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.