Home / 12,538.44-17,297.48-8,061.36

Finding the Fourth Proportional to 12,538.44, 17,297.48 and 8,061.36

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Solution

The fourth proportional to 12,538.44, 17,297.48 and 8,061.36 is: 11,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,538.44 : 17,297.48 = 8,061.36 : x
  2. Step 2: Convert to fraction form
    12,538.44/17,297.48 = 8,061.36/x
  3. Step 3: Cross multiply
    12,538.44x = 17,297.48 × 8,061.36
  4. Step 4: Simplify right side
    12,538.44x = 139,441,213.37
  5. Step 5: Solve for x
    x = 139,441,213.37/12,538.44
  6. Step 6: Final answer
    x = 11,121.10

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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.