Home / 11,283.78-16,928.64-4,263.90

Finding the Fourth Proportional to 11,283.78, 16,928.64 and 4,263.90

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Solution

The fourth proportional to 11,283.78, 16,928.64 and 4,263.90 is: 6,396.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,283.78 : 16,928.64 = 4,263.90 : x
  2. Step 2: Convert to fraction form
    11,283.78/16,928.64 = 4,263.90/x
  3. Step 3: Cross multiply
    11,283.78x = 16,928.64 × 4,263.90
  4. Step 4: Simplify right side
    11,283.78x = 72,182,028.10
  5. Step 5: Solve for x
    x = 72,182,028.10/11,283.78
  6. Step 6: Final answer
    x = 6,396.97

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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.