Home / 11,078.07-16,578.08-6,920.04

Finding the Fourth Proportional to 11,078.07, 16,578.08 and 6,920.04

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Solution

The fourth proportional to 11,078.07, 16,578.08 and 6,920.04 is: 10,355.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.07 : 16,578.08 = 6,920.04 : x
  2. Step 2: Convert to fraction form
    11,078.07/16,578.08 = 6,920.04/x
  3. Step 3: Cross multiply
    11,078.07x = 16,578.08 × 6,920.04
  4. Step 4: Simplify right side
    11,078.07x = 114,720,955.10
  5. Step 5: Solve for x
    x = 114,720,955.10/11,078.07
  6. Step 6: Final answer
    x = 10,355.68

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1.5x scale

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.