Home / 11,106.72-16,653.60-6,480

Finding the Fourth Proportional to 11,106.72, 16,653.60 and 6,480

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Solution

The fourth proportional to 11,106.72, 16,653.60 and 6,480 is: 9,716.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.72 : 16,653.60 = 6,480 : x
  2. Step 2: Convert to fraction form
    11,106.72/16,653.60 = 6,480/x
  3. Step 3: Cross multiply
    11,106.72x = 16,653.60 × 6,480
  4. Step 4: Simplify right side
    11,106.72x = 107,915,328.00
  5. Step 5: Solve for x
    x = 107,915,328.00/11,106.72
  6. Step 6: Final answer
    x = 9,716.22

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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.