Home / 11,100.36-15,315.98-6,623.25

Finding the Fourth Proportional to 11,100.36, 15,315.98 and 6,623.25

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Solution

The fourth proportional to 11,100.36, 15,315.98 and 6,623.25 is: 9,138.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.36 : 15,315.98 = 6,623.25 : x
  2. Step 2: Convert to fraction form
    11,100.36/15,315.98 = 6,623.25/x
  3. Step 3: Cross multiply
    11,100.36x = 15,315.98 × 6,623.25
  4. Step 4: Simplify right side
    11,100.36x = 101,441,564.54
  5. Step 5: Solve for x
    x = 101,441,564.54/11,100.36
  6. Step 6: Final answer
    x = 9,138.58

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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.