Home / 13,977.44-21,049.40-12,606.56

Finding the Fourth Proportional to 13,977.44, 21,049.40 and 12,606.56

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Solution

The fourth proportional to 13,977.44, 21,049.40 and 12,606.56 is: 18,984.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.44 : 21,049.40 = 12,606.56 : x
  2. Step 2: Convert to fraction form
    13,977.44/21,049.40 = 12,606.56/x
  3. Step 3: Cross multiply
    13,977.44x = 21,049.40 × 12,606.56
  4. Step 4: Simplify right side
    13,977.44x = 265,360,524.06
  5. Step 5: Solve for x
    x = 265,360,524.06/13,977.44
  6. Step 6: Final answer
    x = 18,984.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.