Home / 11,375.64-17,063.60-3,980.07

Finding the Fourth Proportional to 11,375.64, 17,063.60 and 3,980.07

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Solution

The fourth proportional to 11,375.64, 17,063.60 and 3,980.07 is: 5,970.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,375.64 : 17,063.60 = 3,980.07 : x
  2. Step 2: Convert to fraction form
    11,375.64/17,063.60 = 3,980.07/x
  3. Step 3: Cross multiply
    11,375.64x = 17,063.60 × 3,980.07
  4. Step 4: Simplify right side
    11,375.64x = 67,914,302.55
  5. Step 5: Solve for x
    x = 67,914,302.55/11,375.64
  6. Step 6: Final answer
    x = 5,970.15

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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.