Home / 11,840.02-17,755.86-3,940.39

Finding the Fourth Proportional to 11,840.02, 17,755.86 and 3,940.39

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Solution

The fourth proportional to 11,840.02, 17,755.86 and 3,940.39 is: 5,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.02 : 17,755.86 = 3,940.39 : x
  2. Step 2: Convert to fraction form
    11,840.02/17,755.86 = 3,940.39/x
  3. Step 3: Cross multiply
    11,840.02x = 17,755.86 × 3,940.39
  4. Step 4: Simplify right side
    11,840.02x = 69,965,013.19
  5. Step 5: Solve for x
    x = 69,965,013.19/11,840.02
  6. Step 6: Final answer
    x = 5,909.20

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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.