Home / 13,699.89-20,537.46-4,928.63

Finding the Fourth Proportional to 13,699.89, 20,537.46 and 4,928.63

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Solution

The fourth proportional to 13,699.89, 20,537.46 and 4,928.63 is: 7,388.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.89 : 20,537.46 = 4,928.63 : x
  2. Step 2: Convert to fraction form
    13,699.89/20,537.46 = 4,928.63/x
  3. Step 3: Cross multiply
    13,699.89x = 20,537.46 × 4,928.63
  4. Step 4: Simplify right side
    13,699.89x = 101,221,438.79
  5. Step 5: Solve for x
    x = 101,221,438.79/13,699.89
  6. Step 6: Final answer
    x = 7,388.49

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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.