Home / 13,914.45-20,868.03-6,515.10

Finding the Fourth Proportional to 13,914.45, 20,868.03 and 6,515.10

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Solution

The fourth proportional to 13,914.45, 20,868.03 and 6,515.10 is: 9,770.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.45 : 20,868.03 = 6,515.10 : x
  2. Step 2: Convert to fraction form
    13,914.45/20,868.03 = 6,515.10/x
  3. Step 3: Cross multiply
    13,914.45x = 20,868.03 × 6,515.10
  4. Step 4: Simplify right side
    13,914.45x = 135,957,302.25
  5. Step 5: Solve for x
    x = 135,957,302.25/13,914.45
  6. Step 6: Final answer
    x = 9,770.94

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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.