Home / 13,454.84-20,174.94-4,687.40

Finding the Fourth Proportional to 13,454.84, 20,174.94 and 4,687.40

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Solution

The fourth proportional to 13,454.84, 20,174.94 and 4,687.40 is: 7,028.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.84 : 20,174.94 = 4,687.40 : x
  2. Step 2: Convert to fraction form
    13,454.84/20,174.94 = 4,687.40/x
  3. Step 3: Cross multiply
    13,454.84x = 20,174.94 × 4,687.40
  4. Step 4: Simplify right side
    13,454.84x = 94,568,013.76
  5. Step 5: Solve for x
    x = 94,568,013.76/13,454.84
  6. Step 6: Final answer
    x = 7,028.55

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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.