Home / 18,735.89-25,852.41-11,185.28

Finding the Fourth Proportional to 18,735.89, 25,852.41 and 11,185.28

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Solution

The fourth proportional to 18,735.89, 25,852.41 and 11,185.28 is: 15,433.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.89 : 25,852.41 = 11,185.28 : x
  2. Step 2: Convert to fraction form
    18,735.89/25,852.41 = 11,185.28/x
  3. Step 3: Cross multiply
    18,735.89x = 25,852.41 × 11,185.28
  4. Step 4: Simplify right side
    18,735.89x = 289,166,315.26
  5. Step 5: Solve for x
    x = 289,166,315.26/18,735.89
  6. Step 6: Final answer
    x = 15,433.82

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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.