Home / 13,313.82-19,936.57-12,919.67

Finding the Fourth Proportional to 13,313.82, 19,936.57 and 12,919.67

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Solution

The fourth proportional to 13,313.82, 19,936.57 and 12,919.67 is: 19,346.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.82 : 19,936.57 = 12,919.67 : x
  2. Step 2: Convert to fraction form
    13,313.82/19,936.57 = 12,919.67/x
  3. Step 3: Cross multiply
    13,313.82x = 19,936.57 × 12,919.67
  4. Step 4: Simplify right side
    13,313.82x = 257,573,905.33
  5. Step 5: Solve for x
    x = 257,573,905.33/13,313.82
  6. Step 6: Final answer
    x = 19,346.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.