Home / 8,939.21-13,409.45-2,365.31

Finding the Fourth Proportional to 8,939.21, 13,409.45 and 2,365.31

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Solution

The fourth proportional to 8,939.21, 13,409.45 and 2,365.31 is: 3,548.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.21 : 13,409.45 = 2,365.31 : x
  2. Step 2: Convert to fraction form
    8,939.21/13,409.45 = 2,365.31/x
  3. Step 3: Cross multiply
    8,939.21x = 13,409.45 × 2,365.31
  4. Step 4: Simplify right side
    8,939.21x = 31,717,536.75
  5. Step 5: Solve for x
    x = 31,717,536.75/8,939.21
  6. Step 6: Final answer
    x = 3,548.14

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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.