Home / 13,039.26-17,974.26-7,994.12

Finding the Fourth Proportional to 13,039.26, 17,974.26 and 7,994.12

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Solution

The fourth proportional to 13,039.26, 17,974.26 and 7,994.12 is: 11,019.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.26 : 17,974.26 = 7,994.12 : x
  2. Step 2: Convert to fraction form
    13,039.26/17,974.26 = 7,994.12/x
  3. Step 3: Cross multiply
    13,039.26x = 17,974.26 × 7,994.12
  4. Step 4: Simplify right side
    13,039.26x = 143,688,391.35
  5. Step 5: Solve for x
    x = 143,688,391.35/13,039.26
  6. Step 6: Final answer
    x = 11,019.67

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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.