Home / 11,880.45-16,389.72-6,843.36

Finding the Fourth Proportional to 11,880.45, 16,389.72 and 6,843.36

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Solution

The fourth proportional to 11,880.45, 16,389.72 and 6,843.36 is: 9,440.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,880.45 : 16,389.72 = 6,843.36 : x
  2. Step 2: Convert to fraction form
    11,880.45/16,389.72 = 6,843.36/x
  3. Step 3: Cross multiply
    11,880.45x = 16,389.72 × 6,843.36
  4. Step 4: Simplify right side
    11,880.45x = 112,160,754.26
  5. Step 5: Solve for x
    x = 112,160,754.26/11,880.45
  6. Step 6: Final answer
    x = 9,440.78

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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.