Home / 13,945.42-19,245.36-7,657.93

Finding the Fourth Proportional to 13,945.42, 19,245.36 and 7,657.93

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Solution

The fourth proportional to 13,945.42, 19,245.36 and 7,657.93 is: 10,568.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.42 : 19,245.36 = 7,657.93 : x
  2. Step 2: Convert to fraction form
    13,945.42/19,245.36 = 7,657.93/x
  3. Step 3: Cross multiply
    13,945.42x = 19,245.36 × 7,657.93
  4. Step 4: Simplify right side
    13,945.42x = 147,379,619.70
  5. Step 5: Solve for x
    x = 147,379,619.70/13,945.42
  6. Step 6: Final answer
    x = 10,568.32

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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.