Home / 13,860.12-20,794.62-4,969.46

Finding the Fourth Proportional to 13,860.12, 20,794.62 and 4,969.46

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Solution

The fourth proportional to 13,860.12, 20,794.62 and 4,969.46 is: 7,455.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.12 : 20,794.62 = 4,969.46 : x
  2. Step 2: Convert to fraction form
    13,860.12/20,794.62 = 4,969.46/x
  3. Step 3: Cross multiply
    13,860.12x = 20,794.62 × 4,969.46
  4. Step 4: Simplify right side
    13,860.12x = 103,337,928.33
  5. Step 5: Solve for x
    x = 103,337,928.33/13,860.12
  6. Step 6: Final answer
    x = 7,455.77

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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.