Home / 11,778.95-16,255.99-6,474.80

Finding the Fourth Proportional to 11,778.95, 16,255.99 and 6,474.80

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Solution

The fourth proportional to 11,778.95, 16,255.99 and 6,474.80 is: 8,935.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.95 : 16,255.99 = 6,474.80 : x
  2. Step 2: Convert to fraction form
    11,778.95/16,255.99 = 6,474.80/x
  3. Step 3: Cross multiply
    11,778.95x = 16,255.99 × 6,474.80
  4. Step 4: Simplify right side
    11,778.95x = 105,254,284.05
  5. Step 5: Solve for x
    x = 105,254,284.05/11,778.95
  6. Step 6: Final answer
    x = 8,935.80

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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.