Home / 13,607.72-20,412.35-4,249.04

Finding the Fourth Proportional to 13,607.72, 20,412.35 and 4,249.04

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Solution

The fourth proportional to 13,607.72, 20,412.35 and 4,249.04 is: 6,373.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,607.72 : 20,412.35 = 4,249.04 : x
  2. Step 2: Convert to fraction form
    13,607.72/20,412.35 = 4,249.04/x
  3. Step 3: Cross multiply
    13,607.72x = 20,412.35 × 4,249.04
  4. Step 4: Simplify right side
    13,607.72x = 86,732,768.34
  5. Step 5: Solve for x
    x = 86,732,768.34/13,607.72
  6. Step 6: Final answer
    x = 6,373.79

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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.