Home / 13,975.12-20,962.68-4,114.20

Finding the Fourth Proportional to 13,975.12, 20,962.68 and 4,114.20

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Solution

The fourth proportional to 13,975.12, 20,962.68 and 4,114.20 is: 6,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.12 : 20,962.68 = 4,114.20 : x
  2. Step 2: Convert to fraction form
    13,975.12/20,962.68 = 4,114.20/x
  3. Step 3: Cross multiply
    13,975.12x = 20,962.68 × 4,114.20
  4. Step 4: Simplify right side
    13,975.12x = 86,244,658.06
  5. Step 5: Solve for x
    x = 86,244,658.06/13,975.12
  6. Step 6: Final answer
    x = 6,171.30

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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.