Home / 13,840.56-20,760.84-3,452.40

Finding the Fourth Proportional to 13,840.56, 20,760.84 and 3,452.40

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Solution

The fourth proportional to 13,840.56, 20,760.84 and 3,452.40 is: 5,178.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.56 : 20,760.84 = 3,452.40 : x
  2. Step 2: Convert to fraction form
    13,840.56/20,760.84 = 3,452.40/x
  3. Step 3: Cross multiply
    13,840.56x = 20,760.84 × 3,452.40
  4. Step 4: Simplify right side
    13,840.56x = 71,674,724.02
  5. Step 5: Solve for x
    x = 71,674,724.02/13,840.56
  6. Step 6: Final answer
    x = 5,178.60

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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.