Home / 13,824.89-20,739.42-5,057.72

Finding the Fourth Proportional to 13,824.89, 20,739.42 and 5,057.72

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Solution

The fourth proportional to 13,824.89, 20,739.42 and 5,057.72 is: 7,587.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.89 : 20,739.42 = 5,057.72 : x
  2. Step 2: Convert to fraction form
    13,824.89/20,739.42 = 5,057.72/x
  3. Step 3: Cross multiply
    13,824.89x = 20,739.42 × 5,057.72
  4. Step 4: Simplify right side
    13,824.89x = 104,894,075.63
  5. Step 5: Solve for x
    x = 104,894,075.63/13,824.89
  6. Step 6: Final answer
    x = 7,587.34

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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.