Home / 13,872.12-19,143.54-7,584.50

Finding the Fourth Proportional to 13,872.12, 19,143.54 and 7,584.50

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Solution

The fourth proportional to 13,872.12, 19,143.54 and 7,584.50 is: 10,466.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.12 : 19,143.54 = 7,584.50 : x
  2. Step 2: Convert to fraction form
    13,872.12/19,143.54 = 7,584.50/x
  3. Step 3: Cross multiply
    13,872.12x = 19,143.54 × 7,584.50
  4. Step 4: Simplify right side
    13,872.12x = 145,194,179.13
  5. Step 5: Solve for x
    x = 145,194,179.13/13,872.12
  6. Step 6: Final answer
    x = 10,466.62

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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.