Home / 13,876.07-19,146.74-7,907.85

Finding the Fourth Proportional to 13,876.07, 19,146.74 and 7,907.85

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Solution

The fourth proportional to 13,876.07, 19,146.74 and 7,907.85 is: 10,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876.07 : 19,146.74 = 7,907.85 : x
  2. Step 2: Convert to fraction form
    13,876.07/19,146.74 = 7,907.85/x
  3. Step 3: Cross multiply
    13,876.07x = 19,146.74 × 7,907.85
  4. Step 4: Simplify right side
    13,876.07x = 151,409,508.37
  5. Step 5: Solve for x
    x = 151,409,508.37/13,876.07
  6. Step 6: Final answer
    x = 10,911.56

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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.