Home / 13,739.75-18,951.83-10,902.62

Finding the Fourth Proportional to 13,739.75, 18,951.83 and 10,902.62

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Solution

The fourth proportional to 13,739.75, 18,951.83 and 10,902.62 is: 15,038.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.75 : 18,951.83 = 10,902.62 : x
  2. Step 2: Convert to fraction form
    13,739.75/18,951.83 = 10,902.62/x
  3. Step 3: Cross multiply
    13,739.75x = 18,951.83 × 10,902.62
  4. Step 4: Simplify right side
    13,739.75x = 206,624,546.28
  5. Step 5: Solve for x
    x = 206,624,546.28/13,739.75
  6. Step 6: Final answer
    x = 15,038.46

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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.