Home / 12,735.25-19,110.56-5,439.25

Finding the Fourth Proportional to 12,735.25, 19,110.56 and 5,439.25

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Solution

The fourth proportional to 12,735.25, 19,110.56 and 5,439.25 is: 8,162.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,735.25 : 19,110.56 = 5,439.25 : x
  2. Step 2: Convert to fraction form
    12,735.25/19,110.56 = 5,439.25/x
  3. Step 3: Cross multiply
    12,735.25x = 19,110.56 × 5,439.25
  4. Step 4: Simplify right side
    12,735.25x = 103,947,113.48
  5. Step 5: Solve for x
    x = 103,947,113.48/12,735.25
  6. Step 6: Final answer
    x = 8,162.16

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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.