Home / 13,316.78-19,976.35-3,829.14

Finding the Fourth Proportional to 13,316.78, 19,976.35 and 3,829.14

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Solution

The fourth proportional to 13,316.78, 19,976.35 and 3,829.14 is: 5,744.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.78 : 19,976.35 = 3,829.14 : x
  2. Step 2: Convert to fraction form
    13,316.78/19,976.35 = 3,829.14/x
  3. Step 3: Cross multiply
    13,316.78x = 19,976.35 × 3,829.14
  4. Step 4: Simplify right side
    13,316.78x = 76,492,240.84
  5. Step 5: Solve for x
    x = 76,492,240.84/13,316.78
  6. Step 6: Final answer
    x = 5,744.05

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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.