Home / 11,422.08-17,121.60-4,492.80

Finding the Fourth Proportional to 11,422.08, 17,121.60 and 4,492.80

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Solution

The fourth proportional to 11,422.08, 17,121.60 and 4,492.80 is: 6,734.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,422.08 : 17,121.60 = 4,492.80 : x
  2. Step 2: Convert to fraction form
    11,422.08/17,121.60 = 4,492.80/x
  3. Step 3: Cross multiply
    11,422.08x = 17,121.60 × 4,492.80
  4. Step 4: Simplify right side
    11,422.08x = 76,923,924.48
  5. Step 5: Solve for x
    x = 76,923,924.48/11,422.08
  6. Step 6: Final answer
    x = 6,734.67

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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.