Home / 13,449.56-20,177.58-4,215.56

Finding the Fourth Proportional to 13,449.56, 20,177.58 and 4,215.56

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Solution

The fourth proportional to 13,449.56, 20,177.58 and 4,215.56 is: 6,324.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.56 : 20,177.58 = 4,215.56 : x
  2. Step 2: Convert to fraction form
    13,449.56/20,177.58 = 4,215.56/x
  3. Step 3: Cross multiply
    13,449.56x = 20,177.58 × 4,215.56
  4. Step 4: Simplify right side
    13,449.56x = 85,059,865.40
  5. Step 5: Solve for x
    x = 85,059,865.40/13,449.56
  6. Step 6: Final answer
    x = 6,324.36

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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.