Home / 13,157.42-19,743.42-5,365.64

Finding the Fourth Proportional to 13,157.42, 19,743.42 and 5,365.64

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Solution

The fourth proportional to 13,157.42, 19,743.42 and 5,365.64 is: 8,051.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,157.42 : 19,743.42 = 5,365.64 : x
  2. Step 2: Convert to fraction form
    13,157.42/19,743.42 = 5,365.64/x
  3. Step 3: Cross multiply
    13,157.42x = 19,743.42 × 5,365.64
  4. Step 4: Simplify right side
    13,157.42x = 105,936,084.09
  5. Step 5: Solve for x
    x = 105,936,084.09/13,157.42
  6. Step 6: Final answer
    x = 8,051.43

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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.