Home / 13,313.77-19,936.49-12,919.60

Finding the Fourth Proportional to 13,313.77, 19,936.49 and 12,919.60

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Solution

The fourth proportional to 13,313.77, 19,936.49 and 12,919.60 is: 19,346.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.77 : 19,936.49 = 12,919.60 : x
  2. Step 2: Convert to fraction form
    13,313.77/19,936.49 = 12,919.60/x
  3. Step 3: Cross multiply
    13,313.77x = 19,936.49 × 12,919.60
  4. Step 4: Simplify right side
    13,313.77x = 257,571,476.20
  5. Step 5: Solve for x
    x = 257,571,476.20/13,313.77
  6. Step 6: Final answer
    x = 19,346.25

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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.