Home / 15,991.88-23,977.56-6,638.34

Finding the Fourth Proportional to 15,991.88, 23,977.56 and 6,638.34

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Solution

The fourth proportional to 15,991.88, 23,977.56 and 6,638.34 is: 9,953.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.88 : 23,977.56 = 6,638.34 : x
  2. Step 2: Convert to fraction form
    15,991.88/23,977.56 = 6,638.34/x
  3. Step 3: Cross multiply
    15,991.88x = 23,977.56 × 6,638.34
  4. Step 4: Simplify right side
    15,991.88x = 159,171,195.65
  5. Step 5: Solve for x
    x = 159,171,195.65/15,991.88
  6. Step 6: Final answer
    x = 9,953.25

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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.