Home / 13,719.21-20,576.70-4,358.01

Finding the Fourth Proportional to 13,719.21, 20,576.70 and 4,358.01

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Solution

The fourth proportional to 13,719.21, 20,576.70 and 4,358.01 is: 6,536.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.21 : 20,576.70 = 4,358.01 : x
  2. Step 2: Convert to fraction form
    13,719.21/20,576.70 = 4,358.01/x
  3. Step 3: Cross multiply
    13,719.21x = 20,576.70 × 4,358.01
  4. Step 4: Simplify right side
    13,719.21x = 89,673,464.37
  5. Step 5: Solve for x
    x = 89,673,464.37/13,719.21
  6. Step 6: Final answer
    x = 6,536.34

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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.