Home / 13,806.78-20,707.27-4,447.64

Finding the Fourth Proportional to 13,806.78, 20,707.27 and 4,447.64

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Solution

The fourth proportional to 13,806.78, 20,707.27 and 4,447.64 is: 6,670.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.78 : 20,707.27 = 4,447.64 : x
  2. Step 2: Convert to fraction form
    13,806.78/20,707.27 = 4,447.64/x
  3. Step 3: Cross multiply
    13,806.78x = 20,707.27 × 4,447.64
  4. Step 4: Simplify right side
    13,806.78x = 92,098,482.34
  5. Step 5: Solve for x
    x = 92,098,482.34/13,806.78
  6. Step 6: Final answer
    x = 6,670.53

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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.