Home / 13,877.48-19,149.86-7,907.96

Finding the Fourth Proportional to 13,877.48, 19,149.86 and 7,907.96

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Solution

The fourth proportional to 13,877.48, 19,149.86 and 7,907.96 is: 10,912.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.48 : 19,149.86 = 7,907.96 : x
  2. Step 2: Convert to fraction form
    13,877.48/19,149.86 = 7,907.96/x
  3. Step 3: Cross multiply
    13,877.48x = 19,149.86 × 7,907.96
  4. Step 4: Simplify right side
    13,877.48x = 151,436,326.89
  5. Step 5: Solve for x
    x = 151,436,326.89/13,877.48
  6. Step 6: Final answer
    x = 10,912.38

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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.