Home / 13,823.46-19,076.31-7,855.38

Finding the Fourth Proportional to 13,823.46, 19,076.31 and 7,855.38

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Solution

The fourth proportional to 13,823.46, 19,076.31 and 7,855.38 is: 10,840.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.46 : 19,076.31 = 7,855.38 : x
  2. Step 2: Convert to fraction form
    13,823.46/19,076.31 = 7,855.38/x
  3. Step 3: Cross multiply
    13,823.46x = 19,076.31 × 7,855.38
  4. Step 4: Simplify right side
    13,823.46x = 149,851,664.05
  5. Step 5: Solve for x
    x = 149,851,664.05/13,823.46
  6. Step 6: Final answer
    x = 10,840.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.