Home / 10,722.40-16,083.60-4,880.68

Finding the Fourth Proportional to 10,722.40, 16,083.60 and 4,880.68

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Solution

The fourth proportional to 10,722.40, 16,083.60 and 4,880.68 is: 7,321.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,722.40 : 16,083.60 = 4,880.68 : x
  2. Step 2: Convert to fraction form
    10,722.40/16,083.60 = 4,880.68/x
  3. Step 3: Cross multiply
    10,722.40x = 16,083.60 × 4,880.68
  4. Step 4: Simplify right side
    10,722.40x = 78,498,904.85
  5. Step 5: Solve for x
    x = 78,498,904.85/10,722.40
  6. Step 6: Final answer
    x = 7,321.02

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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.