Home / 11,274.60-16,900.50-5,428.02

Finding the Fourth Proportional to 11,274.60, 16,900.50 and 5,428.02

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Solution

The fourth proportional to 11,274.60, 16,900.50 and 5,428.02 is: 8,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,274.60 : 16,900.50 = 5,428.02 : x
  2. Step 2: Convert to fraction form
    11,274.60/16,900.50 = 5,428.02/x
  3. Step 3: Cross multiply
    11,274.60x = 16,900.50 × 5,428.02
  4. Step 4: Simplify right side
    11,274.60x = 91,736,252.01
  5. Step 5: Solve for x
    x = 91,736,252.01/11,274.60
  6. Step 6: Final answer
    x = 8,136.54

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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.