Home / 18,657.09-25,751.93-12,698.73

Finding the Fourth Proportional to 18,657.09, 25,751.93 and 12,698.73

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Solution

The fourth proportional to 18,657.09, 25,751.93 and 12,698.73 is: 17,527.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,657.09 : 25,751.93 = 12,698.73 : x
  2. Step 2: Convert to fraction form
    18,657.09/25,751.93 = 12,698.73/x
  3. Step 3: Cross multiply
    18,657.09x = 25,751.93 × 12,698.73
  4. Step 4: Simplify right side
    18,657.09x = 327,016,742.56
  5. Step 5: Solve for x
    x = 327,016,742.56/18,657.09
  6. Step 6: Final answer
    x = 17,527.75

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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.