Home / 13,819.60-20,730.48-6,803.38

Finding the Fourth Proportional to 13,819.60, 20,730.48 and 6,803.38

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Solution

The fourth proportional to 13,819.60, 20,730.48 and 6,803.38 is: 10,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.60 : 20,730.48 = 6,803.38 : x
  2. Step 2: Convert to fraction form
    13,819.60/20,730.48 = 6,803.38/x
  3. Step 3: Cross multiply
    13,819.60x = 20,730.48 × 6,803.38
  4. Step 4: Simplify right side
    13,819.60x = 141,037,333.02
  5. Step 5: Solve for x
    x = 141,037,333.02/13,819.60
  6. Step 6: Final answer
    x = 10,205.60

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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.