Home / 13,806.56-20,707.82-5,039.40

Finding the Fourth Proportional to 13,806.56, 20,707.82 and 5,039.40

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Solution

The fourth proportional to 13,806.56, 20,707.82 and 5,039.40 is: 7,558.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.56 : 20,707.82 = 5,039.40 : x
  2. Step 2: Convert to fraction form
    13,806.56/20,707.82 = 5,039.40/x
  3. Step 3: Cross multiply
    13,806.56x = 20,707.82 × 5,039.40
  4. Step 4: Simplify right side
    13,806.56x = 104,354,988.11
  5. Step 5: Solve for x
    x = 104,354,988.11/13,806.56
  6. Step 6: Final answer
    x = 7,558.36

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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.