Home / 8,613.44-11,885.28-5,076.80

Finding the Fourth Proportional to 8,613.44, 11,885.28 and 5,076.80

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Solution

The fourth proportional to 8,613.44, 11,885.28 and 5,076.80 is: 7,005.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.44 : 11,885.28 = 5,076.80 : x
  2. Step 2: Convert to fraction form
    8,613.44/11,885.28 = 5,076.80/x
  3. Step 3: Cross multiply
    8,613.44x = 11,885.28 × 5,076.80
  4. Step 4: Simplify right side
    8,613.44x = 60,339,189.50
  5. Step 5: Solve for x
    x = 60,339,189.50/8,613.44
  6. Step 6: Final answer
    x = 7,005.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.