Home / 13,828.18-20,733.93-5,509.48

Finding the Fourth Proportional to 13,828.18, 20,733.93 and 5,509.48

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Solution

The fourth proportional to 13,828.18, 20,733.93 and 5,509.48 is: 8,260.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.18 : 20,733.93 = 5,509.48 : x
  2. Step 2: Convert to fraction form
    13,828.18/20,733.93 = 5,509.48/x
  3. Step 3: Cross multiply
    13,828.18x = 20,733.93 × 5,509.48
  4. Step 4: Simplify right side
    13,828.18x = 114,233,172.66
  5. Step 5: Solve for x
    x = 114,233,172.66/13,828.18
  6. Step 6: Final answer
    x = 8,260.90

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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.