Home / 13,812.45-20,706-5,041.23

Finding the Fourth Proportional to 13,812.45, 20,706 and 5,041.23

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Solution

The fourth proportional to 13,812.45, 20,706 and 5,041.23 is: 7,557.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.45 : 20,706 = 5,041.23 : x
  2. Step 2: Convert to fraction form
    13,812.45/20,706 = 5,041.23/x
  3. Step 3: Cross multiply
    13,812.45x = 20,706 × 5,041.23
  4. Step 4: Simplify right side
    13,812.45x = 104,383,708.38
  5. Step 5: Solve for x
    x = 104,383,708.38/13,812.45
  6. Step 6: Final answer
    x = 7,557.22

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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.