Home / 13,823.08-20,712.36-8,273.81

Finding the Fourth Proportional to 13,823.08, 20,712.36 and 8,273.81

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Solution

The fourth proportional to 13,823.08, 20,712.36 and 8,273.81 is: 12,397.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.08 : 20,712.36 = 8,273.81 : x
  2. Step 2: Convert to fraction form
    13,823.08/20,712.36 = 8,273.81/x
  3. Step 3: Cross multiply
    13,823.08x = 20,712.36 × 8,273.81
  4. Step 4: Simplify right side
    13,823.08x = 171,370,131.29
  5. Step 5: Solve for x
    x = 171,370,131.29/13,823.08
  6. Step 6: Final answer
    x = 12,397.39

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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.