Home / 11,840.04-17,756.40-3,940.86

Finding the Fourth Proportional to 11,840.04, 17,756.40 and 3,940.86

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Solution

The fourth proportional to 11,840.04, 17,756.40 and 3,940.86 is: 5,910.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.04 : 17,756.40 = 3,940.86 : x
  2. Step 2: Convert to fraction form
    11,840.04/17,756.40 = 3,940.86/x
  3. Step 3: Cross multiply
    11,840.04x = 17,756.40 × 3,940.86
  4. Step 4: Simplify right side
    11,840.04x = 69,975,486.50
  5. Step 5: Solve for x
    x = 69,975,486.50/11,840.04
  6. Step 6: Final answer
    x = 5,910.07

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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.