Home / 8,729.69-12,044.87-5,144.80

Finding the Fourth Proportional to 8,729.69, 12,044.87 and 5,144.80

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Solution

The fourth proportional to 8,729.69, 12,044.87 and 5,144.80 is: 7,098.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.69 : 12,044.87 = 5,144.80 : x
  2. Step 2: Convert to fraction form
    8,729.69/12,044.87 = 5,144.80/x
  3. Step 3: Cross multiply
    8,729.69x = 12,044.87 × 5,144.80
  4. Step 4: Simplify right side
    8,729.69x = 61,968,361.23
  5. Step 5: Solve for x
    x = 61,968,361.23/8,729.69
  6. Step 6: Final answer
    x = 7,098.58

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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.