Home / 18,819.06-25,982.56-12,848.56

Finding the Fourth Proportional to 18,819.06, 25,982.56 and 12,848.56

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Solution

The fourth proportional to 18,819.06, 25,982.56 and 12,848.56 is: 17,739.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819.06 : 25,982.56 = 12,848.56 : x
  2. Step 2: Convert to fraction form
    18,819.06/25,982.56 = 12,848.56/x
  3. Step 3: Cross multiply
    18,819.06x = 25,982.56 × 12,848.56
  4. Step 4: Simplify right side
    18,819.06x = 333,838,481.11
  5. Step 5: Solve for x
    x = 333,838,481.11/18,819.06
  6. Step 6: Final answer
    x = 17,739.38

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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.