Home / 13,231.42-19,851.78-8,806.84

Finding the Fourth Proportional to 13,231.42, 19,851.78 and 8,806.84

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Solution

The fourth proportional to 13,231.42, 19,851.78 and 8,806.84 is: 13,213.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.42 : 19,851.78 = 8,806.84 : x
  2. Step 2: Convert to fraction form
    13,231.42/19,851.78 = 8,806.84/x
  3. Step 3: Cross multiply
    13,231.42x = 19,851.78 × 8,806.84
  4. Step 4: Simplify right side
    13,231.42x = 174,831,450.18
  5. Step 5: Solve for x
    x = 174,831,450.18/13,231.42
  6. Step 6: Final answer
    x = 13,213.36

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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.