Home / 11,289.71-16,933.35-3,391.40

Finding the Fourth Proportional to 11,289.71, 16,933.35 and 3,391.40

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Solution

The fourth proportional to 11,289.71, 16,933.35 and 3,391.40 is: 5,086.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.71 : 16,933.35 = 3,391.40 : x
  2. Step 2: Convert to fraction form
    11,289.71/16,933.35 = 3,391.40/x
  3. Step 3: Cross multiply
    11,289.71x = 16,933.35 × 3,391.40
  4. Step 4: Simplify right side
    11,289.71x = 57,427,763.19
  5. Step 5: Solve for x
    x = 57,427,763.19/11,289.71
  6. Step 6: Final answer
    x = 5,086.74

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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.