Home / 13,875.22-19,147.99-8,209.82

Finding the Fourth Proportional to 13,875.22, 19,147.99 and 8,209.82

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Solution

The fourth proportional to 13,875.22, 19,147.99 and 8,209.82 is: 11,329.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.22 : 19,147.99 = 8,209.82 : x
  2. Step 2: Convert to fraction form
    13,875.22/19,147.99 = 8,209.82/x
  3. Step 3: Cross multiply
    13,875.22x = 19,147.99 × 8,209.82
  4. Step 4: Simplify right side
    13,875.22x = 157,201,551.26
  5. Step 5: Solve for x
    x = 157,201,551.26/13,875.22
  6. Step 6: Final answer
    x = 11,329.66

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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.