Home / 26,915.75-40,380.15-8,447.75

Finding the Fourth Proportional to 26,915.75, 40,380.15 and 8,447.75

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Solution

The fourth proportional to 26,915.75, 40,380.15 and 8,447.75 is: 12,673.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,915.75 : 40,380.15 = 8,447.75 : x
  2. Step 2: Convert to fraction form
    26,915.75/40,380.15 = 8,447.75/x
  3. Step 3: Cross multiply
    26,915.75x = 40,380.15 × 8,447.75
  4. Step 4: Simplify right side
    26,915.75x = 341,121,412.16
  5. Step 5: Solve for x
    x = 341,121,412.16/26,915.75
  6. Step 6: Final answer
    x = 12,673.67

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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.