Home / 11,685.20-17,530.60-3,894.08

Finding the Fourth Proportional to 11,685.20, 17,530.60 and 3,894.08

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Solution

The fourth proportional to 11,685.20, 17,530.60 and 3,894.08 is: 5,842.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.20 : 17,530.60 = 3,894.08 : x
  2. Step 2: Convert to fraction form
    11,685.20/17,530.60 = 3,894.08/x
  3. Step 3: Cross multiply
    11,685.20x = 17,530.60 × 3,894.08
  4. Step 4: Simplify right side
    11,685.20x = 68,265,558.85
  5. Step 5: Solve for x
    x = 68,265,558.85/11,685.20
  6. Step 6: Final answer
    x = 5,842.05

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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.