Home / 13,388.64-20,095.42-6,819.74

Finding the Fourth Proportional to 13,388.64, 20,095.42 and 6,819.74

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Solution

The fourth proportional to 13,388.64, 20,095.42 and 6,819.74 is: 10,235.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.64 : 20,095.42 = 6,819.74 : x
  2. Step 2: Convert to fraction form
    13,388.64/20,095.42 = 6,819.74/x
  3. Step 3: Cross multiply
    13,388.64x = 20,095.42 × 6,819.74
  4. Step 4: Simplify right side
    13,388.64x = 137,045,572.78
  5. Step 5: Solve for x
    x = 137,045,572.78/13,388.64
  6. Step 6: Final answer
    x = 10,235.96

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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.