Home / 13,823.60-20,736.48-6,807.38

Finding the Fourth Proportional to 13,823.60, 20,736.48 and 6,807.38

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Solution

The fourth proportional to 13,823.60, 20,736.48 and 6,807.38 is: 10,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.60 : 20,736.48 = 6,807.38 : x
  2. Step 2: Convert to fraction form
    13,823.60/20,736.48 = 6,807.38/x
  3. Step 3: Cross multiply
    13,823.60x = 20,736.48 × 6,807.38
  4. Step 4: Simplify right side
    13,823.60x = 141,161,099.22
  5. Step 5: Solve for x
    x = 141,161,099.22/13,823.60
  6. Step 6: Final answer
    x = 10,211.60

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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.