Home / 13,911.48-20,858.43-7,675.84

Finding the Fourth Proportional to 13,911.48, 20,858.43 and 7,675.84

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Solution

The fourth proportional to 13,911.48, 20,858.43 and 7,675.84 is: 11,508.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.48 : 20,858.43 = 7,675.84 : x
  2. Step 2: Convert to fraction form
    13,911.48/20,858.43 = 7,675.84/x
  3. Step 3: Cross multiply
    13,911.48x = 20,858.43 × 7,675.84
  4. Step 4: Simplify right side
    13,911.48x = 160,105,971.33
  5. Step 5: Solve for x
    x = 160,105,971.33/13,911.48
  6. Step 6: Final answer
    x = 11,508.91

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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.