Home / 12,645.96-18,972.60-5,249.04

Finding the Fourth Proportional to 12,645.96, 18,972.60 and 5,249.04

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Solution

The fourth proportional to 12,645.96, 18,972.60 and 5,249.04 is: 7,875.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645.96 : 18,972.60 = 5,249.04 : x
  2. Step 2: Convert to fraction form
    12,645.96/18,972.60 = 5,249.04/x
  3. Step 3: Cross multiply
    12,645.96x = 18,972.60 × 5,249.04
  4. Step 4: Simplify right side
    12,645.96x = 99,587,936.30
  5. Step 5: Solve for x
    x = 99,587,936.30/12,645.96
  6. Step 6: Final answer
    x = 7,875.08

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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.