Home / 13,749.06-20,660.40-12,034.80

Finding the Fourth Proportional to 13,749.06, 20,660.40 and 12,034.80

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Solution

The fourth proportional to 13,749.06, 20,660.40 and 12,034.80 is: 18,084.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.06 : 20,660.40 = 12,034.80 : x
  2. Step 2: Convert to fraction form
    13,749.06/20,660.40 = 12,034.80/x
  3. Step 3: Cross multiply
    13,749.06x = 20,660.40 × 12,034.80
  4. Step 4: Simplify right side
    13,749.06x = 248,643,781.92
  5. Step 5: Solve for x
    x = 248,643,781.92/13,749.06
  6. Step 6: Final answer
    x = 18,084.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.