Home / 9,231.09-12,738.83-5,039.34

Finding the Fourth Proportional to 9,231.09, 12,738.83 and 5,039.34

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Solution

The fourth proportional to 9,231.09, 12,738.83 and 5,039.34 is: 6,954.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,231.09 : 12,738.83 = 5,039.34 : x
  2. Step 2: Convert to fraction form
    9,231.09/12,738.83 = 5,039.34/x
  3. Step 3: Cross multiply
    9,231.09x = 12,738.83 × 5,039.34
  4. Step 4: Simplify right side
    9,231.09x = 64,195,295.57
  5. Step 5: Solve for x
    x = 64,195,295.57/9,231.09
  6. Step 6: Final answer
    x = 6,954.25

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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.