Home / 13,812.28-20,706-5,041.06

Finding the Fourth Proportional to 13,812.28, 20,706 and 5,041.06

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Solution

The fourth proportional to 13,812.28, 20,706 and 5,041.06 is: 7,557.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.28 : 20,706 = 5,041.06 : x
  2. Step 2: Convert to fraction form
    13,812.28/20,706 = 5,041.06/x
  3. Step 3: Cross multiply
    13,812.28x = 20,706 × 5,041.06
  4. Step 4: Simplify right side
    13,812.28x = 104,380,188.36
  5. Step 5: Solve for x
    x = 104,380,188.36/13,812.28
  6. Step 6: Final answer
    x = 7,557.06

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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.