Home / 12,996.06-19,489.20-10,255.02

Finding the Fourth Proportional to 12,996.06, 19,489.20 and 10,255.02

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Solution

The fourth proportional to 12,996.06, 19,489.20 and 10,255.02 is: 15,378.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,996.06 : 19,489.20 = 10,255.02 : x
  2. Step 2: Convert to fraction form
    12,996.06/19,489.20 = 10,255.02/x
  3. Step 3: Cross multiply
    12,996.06x = 19,489.20 × 10,255.02
  4. Step 4: Simplify right side
    12,996.06x = 199,862,135.78
  5. Step 5: Solve for x
    x = 199,862,135.78/12,996.06
  6. Step 6: Final answer
    x = 15,378.67

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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.