Home / 13,129.83-19,688.17-4,361.67

Finding the Fourth Proportional to 13,129.83, 19,688.17 and 4,361.67

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Solution

The fourth proportional to 13,129.83, 19,688.17 and 4,361.67 is: 6,540.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.83 : 19,688.17 = 4,361.67 : x
  2. Step 2: Convert to fraction form
    13,129.83/19,688.17 = 4,361.67/x
  3. Step 3: Cross multiply
    13,129.83x = 19,688.17 × 4,361.67
  4. Step 4: Simplify right side
    13,129.83x = 85,873,300.44
  5. Step 5: Solve for x
    x = 85,873,300.44/13,129.83
  6. Step 6: Final answer
    x = 6,540.32

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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.