Home / 13,719.54-20,576.93-3,856.48

Finding the Fourth Proportional to 13,719.54, 20,576.93 and 3,856.48

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Solution

The fourth proportional to 13,719.54, 20,576.93 and 3,856.48 is: 5,784.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.54 : 20,576.93 = 3,856.48 : x
  2. Step 2: Convert to fraction form
    13,719.54/20,576.93 = 3,856.48/x
  3. Step 3: Cross multiply
    13,719.54x = 20,576.93 × 3,856.48
  4. Step 4: Simplify right side
    13,719.54x = 79,354,448.28
  5. Step 5: Solve for x
    x = 79,354,448.28/13,719.54
  6. Step 6: Final answer
    x = 5,784.05

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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.