Home / 17,621.78-26,380.80-11,763.86

Finding the Fourth Proportional to 17,621.78, 26,380.80 and 11,763.86

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Solution

The fourth proportional to 17,621.78, 26,380.80 and 11,763.86 is: 17,611.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,621.78 : 26,380.80 = 11,763.86 : x
  2. Step 2: Convert to fraction form
    17,621.78/26,380.80 = 11,763.86/x
  3. Step 3: Cross multiply
    17,621.78x = 26,380.80 × 11,763.86
  4. Step 4: Simplify right side
    17,621.78x = 310,340,037.89
  5. Step 5: Solve for x
    x = 310,340,037.89/17,621.78
  6. Step 6: Final answer
    x = 17,611.16

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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.