Home / 11,213.48-15,480.81-6,738.32

Finding the Fourth Proportional to 11,213.48, 15,480.81 and 6,738.32

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Solution

The fourth proportional to 11,213.48, 15,480.81 and 6,738.32 is: 9,302.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.48 : 15,480.81 = 6,738.32 : x
  2. Step 2: Convert to fraction form
    11,213.48/15,480.81 = 6,738.32/x
  3. Step 3: Cross multiply
    11,213.48x = 15,480.81 × 6,738.32
  4. Step 4: Simplify right side
    11,213.48x = 104,314,651.64
  5. Step 5: Solve for x
    x = 104,314,651.64/11,213.48
  6. Step 6: Final answer
    x = 9,302.61

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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.