Home / 13,902.90-19,180.74-8,867.31

Finding the Fourth Proportional to 13,902.90, 19,180.74 and 8,867.31

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Solution

The fourth proportional to 13,902.90, 19,180.74 and 8,867.31 is: 12,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.90 : 19,180.74 = 8,867.31 : x
  2. Step 2: Convert to fraction form
    13,902.90/19,180.74 = 8,867.31/x
  3. Step 3: Cross multiply
    13,902.90x = 19,180.74 × 8,867.31
  4. Step 4: Simplify right side
    13,902.90x = 170,081,567.61
  5. Step 5: Solve for x
    x = 170,081,567.61/13,902.90
  6. Step 6: Final answer
    x = 12,233.53

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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.