Home / 13,851.72-19,109.93-8,537.31

Finding the Fourth Proportional to 13,851.72, 19,109.93 and 8,537.31

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Solution

The fourth proportional to 13,851.72, 19,109.93 and 8,537.31 is: 11,778.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.72 : 19,109.93 = 8,537.31 : x
  2. Step 2: Convert to fraction form
    13,851.72/19,109.93 = 8,537.31/x
  3. Step 3: Cross multiply
    13,851.72x = 19,109.93 × 8,537.31
  4. Step 4: Simplify right side
    13,851.72x = 163,147,353.80
  5. Step 5: Solve for x
    x = 163,147,353.80/13,851.72
  6. Step 6: Final answer
    x = 11,778.13

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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.