Home / 13,914.75-20,872.13-5,706.75

Finding the Fourth Proportional to 13,914.75, 20,872.13 and 5,706.75

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Solution

The fourth proportional to 13,914.75, 20,872.13 and 5,706.75 is: 8,560.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.75 : 20,872.13 = 5,706.75 : x
  2. Step 2: Convert to fraction form
    13,914.75/20,872.13 = 5,706.75/x
  3. Step 3: Cross multiply
    13,914.75x = 20,872.13 × 5,706.75
  4. Step 4: Simplify right side
    13,914.75x = 119,111,999.34
  5. Step 5: Solve for x
    x = 119,111,999.34/13,914.75
  6. Step 6: Final answer
    x = 8,560.13

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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.