Home / 11,123.21-16,685.02-5,198.47

Finding the Fourth Proportional to 11,123.21, 16,685.02 and 5,198.47

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Solution

The fourth proportional to 11,123.21, 16,685.02 and 5,198.47 is: 7,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.21 : 16,685.02 = 5,198.47 : x
  2. Step 2: Convert to fraction form
    11,123.21/16,685.02 = 5,198.47/x
  3. Step 3: Cross multiply
    11,123.21x = 16,685.02 × 5,198.47
  4. Step 4: Simplify right side
    11,123.21x = 86,736,575.92
  5. Step 5: Solve for x
    x = 86,736,575.92/11,123.21
  6. Step 6: Final answer
    x = 7,797.80

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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.