Home / 8,302.40-12,453.60-7,668.80

Finding the Fourth Proportional to 8,302.40, 12,453.60 and 7,668.80

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Solution

The fourth proportional to 8,302.40, 12,453.60 and 7,668.80 is: 11,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,302.40 : 12,453.60 = 7,668.80 : x
  2. Step 2: Convert to fraction form
    8,302.40/12,453.60 = 7,668.80/x
  3. Step 3: Cross multiply
    8,302.40x = 12,453.60 × 7,668.80
  4. Step 4: Simplify right side
    8,302.40x = 95,504,167.68
  5. Step 5: Solve for x
    x = 95,504,167.68/8,302.40
  6. Step 6: Final answer
    x = 11,503.20

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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.