Home / 11,161.63-15,403.49-6,382.35

Finding the Fourth Proportional to 11,161.63, 15,403.49 and 6,382.35

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Solution

The fourth proportional to 11,161.63, 15,403.49 and 6,382.35 is: 8,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.63 : 15,403.49 = 6,382.35 : x
  2. Step 2: Convert to fraction form
    11,161.63/15,403.49 = 6,382.35/x
  3. Step 3: Cross multiply
    11,161.63x = 15,403.49 × 6,382.35
  4. Step 4: Simplify right side
    11,161.63x = 98,310,480.36
  5. Step 5: Solve for x
    x = 98,310,480.36/11,161.63
  6. Step 6: Final answer
    x = 8,807.90

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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.