Home / 13,361.63-18,439.09-8,056.67

Finding the Fourth Proportional to 13,361.63, 18,439.09 and 8,056.67

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Solution

The fourth proportional to 13,361.63, 18,439.09 and 8,056.67 is: 11,118.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361.63 : 18,439.09 = 8,056.67 : x
  2. Step 2: Convert to fraction form
    13,361.63/18,439.09 = 8,056.67/x
  3. Step 3: Cross multiply
    13,361.63x = 18,439.09 × 8,056.67
  4. Step 4: Simplify right side
    13,361.63x = 148,557,550.89
  5. Step 5: Solve for x
    x = 148,557,550.89/13,361.63
  6. Step 6: Final answer
    x = 11,118.22

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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.