Home / 13,192.84-19,788.78-3,958.60

Finding the Fourth Proportional to 13,192.84, 19,788.78 and 3,958.60

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Solution

The fourth proportional to 13,192.84, 19,788.78 and 3,958.60 is: 5,937.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,192.84 : 19,788.78 = 3,958.60 : x
  2. Step 2: Convert to fraction form
    13,192.84/19,788.78 = 3,958.60/x
  3. Step 3: Cross multiply
    13,192.84x = 19,788.78 × 3,958.60
  4. Step 4: Simplify right side
    13,192.84x = 78,335,864.51
  5. Step 5: Solve for x
    x = 78,335,864.51/13,192.84
  6. Step 6: Final answer
    x = 5,937.76

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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.