Home / 13,860.24-20,802.08-5,546.08

Finding the Fourth Proportional to 13,860.24, 20,802.08 and 5,546.08

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Solution

The fourth proportional to 13,860.24, 20,802.08 and 5,546.08 is: 8,323.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.24 : 20,802.08 = 5,546.08 : x
  2. Step 2: Convert to fraction form
    13,860.24/20,802.08 = 5,546.08/x
  3. Step 3: Cross multiply
    13,860.24x = 20,802.08 × 5,546.08
  4. Step 4: Simplify right side
    13,860.24x = 115,369,999.85
  5. Step 5: Solve for x
    x = 115,369,999.85/13,860.24
  6. Step 6: Final answer
    x = 8,323.81

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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.