Home / 13,735.49-18,954.75-7,766.94

Finding the Fourth Proportional to 13,735.49, 18,954.75 and 7,766.94

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Solution

The fourth proportional to 13,735.49, 18,954.75 and 7,766.94 is: 10,718.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,735.49 : 18,954.75 = 7,766.94 : x
  2. Step 2: Convert to fraction form
    13,735.49/18,954.75 = 7,766.94/x
  3. Step 3: Cross multiply
    13,735.49x = 18,954.75 × 7,766.94
  4. Step 4: Simplify right side
    13,735.49x = 147,220,405.97
  5. Step 5: Solve for x
    x = 147,220,405.97/13,735.49
  6. Step 6: Final answer
    x = 10,718.25

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1.5x scale

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.