Home / 13,628.53-20,450.67-5,730.42

Finding the Fourth Proportional to 13,628.53, 20,450.67 and 5,730.42

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Solution

The fourth proportional to 13,628.53, 20,450.67 and 5,730.42 is: 8,598.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.53 : 20,450.67 = 5,730.42 : x
  2. Step 2: Convert to fraction form
    13,628.53/20,450.67 = 5,730.42/x
  3. Step 3: Cross multiply
    13,628.53x = 20,450.67 × 5,730.42
  4. Step 4: Simplify right side
    13,628.53x = 117,190,826.13
  5. Step 5: Solve for x
    x = 117,190,826.13/13,628.53
  6. Step 6: Final answer
    x = 8,598.93

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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.