Home / 13,443.60-20,171.40-4,684.80

Finding the Fourth Proportional to 13,443.60, 20,171.40 and 4,684.80

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Solution

The fourth proportional to 13,443.60, 20,171.40 and 4,684.80 is: 7,029.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.60 : 20,171.40 = 4,684.80 : x
  2. Step 2: Convert to fraction form
    13,443.60/20,171.40 = 4,684.80/x
  3. Step 3: Cross multiply
    13,443.60x = 20,171.40 × 4,684.80
  4. Step 4: Simplify right side
    13,443.60x = 94,498,974.72
  5. Step 5: Solve for x
    x = 94,498,974.72/13,443.60
  6. Step 6: Final answer
    x = 7,029.29

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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.