Home / 13,297.44-18,355.17-11,878.67

Finding the Fourth Proportional to 13,297.44, 18,355.17 and 11,878.67

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Solution

The fourth proportional to 13,297.44, 18,355.17 and 11,878.67 is: 16,396.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.44 : 18,355.17 = 11,878.67 : x
  2. Step 2: Convert to fraction form
    13,297.44/18,355.17 = 11,878.67/x
  3. Step 3: Cross multiply
    13,297.44x = 18,355.17 × 11,878.67
  4. Step 4: Simplify right side
    13,297.44x = 218,034,915.45
  5. Step 5: Solve for x
    x = 218,034,915.45/13,297.44
  6. Step 6: Final answer
    x = 16,396.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.