Home / 13,817.07-20,709.37-6,405.93

Finding the Fourth Proportional to 13,817.07, 20,709.37 and 6,405.93

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Solution

The fourth proportional to 13,817.07, 20,709.37 and 6,405.93 is: 9,601.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.07 : 20,709.37 = 6,405.93 : x
  2. Step 2: Convert to fraction form
    13,817.07/20,709.37 = 6,405.93/x
  3. Step 3: Cross multiply
    13,817.07x = 20,709.37 × 6,405.93
  4. Step 4: Simplify right side
    13,817.07x = 132,662,774.56
  5. Step 5: Solve for x
    x = 132,662,774.56/13,817.07
  6. Step 6: Final answer
    x = 9,601.37

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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.