Home / 13,669.80-20,505.71-4,904.79

Finding the Fourth Proportional to 13,669.80, 20,505.71 and 4,904.79

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Solution

The fourth proportional to 13,669.80, 20,505.71 and 4,904.79 is: 7,357.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.80 : 20,505.71 = 4,904.79 : x
  2. Step 2: Convert to fraction form
    13,669.80/20,505.71 = 4,904.79/x
  3. Step 3: Cross multiply
    13,669.80x = 20,505.71 × 4,904.79
  4. Step 4: Simplify right side
    13,669.80x = 100,576,201.35
  5. Step 5: Solve for x
    x = 100,576,201.35/13,669.80
  6. Step 6: Final answer
    x = 7,357.55

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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.