Home / 13,629.94-18,885.04-13,334.70

Finding the Fourth Proportional to 13,629.94, 18,885.04 and 13,334.70

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Solution

The fourth proportional to 13,629.94, 18,885.04 and 13,334.70 is: 18,475.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.94 : 18,885.04 = 13,334.70 : x
  2. Step 2: Convert to fraction form
    13,629.94/18,885.04 = 13,334.70/x
  3. Step 3: Cross multiply
    13,629.94x = 18,885.04 × 13,334.70
  4. Step 4: Simplify right side
    13,629.94x = 251,826,342.89
  5. Step 5: Solve for x
    x = 251,826,342.89/13,629.94
  6. Step 6: Final answer
    x = 18,475.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.