Home / 13,869.74-20,812.80-7,296.44

Finding the Fourth Proportional to 13,869.74, 20,812.80 and 7,296.44

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Solution

The fourth proportional to 13,869.74, 20,812.80 and 7,296.44 is: 10,948.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.74 : 20,812.80 = 7,296.44 : x
  2. Step 2: Convert to fraction form
    13,869.74/20,812.80 = 7,296.44/x
  3. Step 3: Cross multiply
    13,869.74x = 20,812.80 × 7,296.44
  4. Step 4: Simplify right side
    13,869.74x = 151,859,242.37
  5. Step 5: Solve for x
    x = 151,859,242.37/13,869.74
  6. Step 6: Final answer
    x = 10,948.96

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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.