Home / 10,778.51-16,162.32-3,280.63

Finding the Fourth Proportional to 10,778.51, 16,162.32 and 3,280.63

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Solution

The fourth proportional to 10,778.51, 16,162.32 and 3,280.63 is: 4,919.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.51 : 16,162.32 = 3,280.63 : x
  2. Step 2: Convert to fraction form
    10,778.51/16,162.32 = 3,280.63/x
  3. Step 3: Cross multiply
    10,778.51x = 16,162.32 × 3,280.63
  4. Step 4: Simplify right side
    10,778.51x = 53,022,559.66
  5. Step 5: Solve for x
    x = 53,022,559.66/10,778.51
  6. Step 6: Final answer
    x = 4,919.29

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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.