Home / 6,861.36-10,272.60-4,666.80

Finding the Fourth Proportional to 6,861.36, 10,272.60 and 4,666.80

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Solution

The fourth proportional to 6,861.36, 10,272.60 and 4,666.80 is: 6,986.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.36 : 10,272.60 = 4,666.80 : x
  2. Step 2: Convert to fraction form
    6,861.36/10,272.60 = 4,666.80/x
  3. Step 3: Cross multiply
    6,861.36x = 10,272.60 × 4,666.80
  4. Step 4: Simplify right side
    6,861.36x = 47,940,169.68
  5. Step 5: Solve for x
    x = 47,940,169.68/6,861.36
  6. Step 6: Final answer
    x = 6,986.98

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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.