Home / 8,945.12-13,421.40-3,944.94

Finding the Fourth Proportional to 8,945.12, 13,421.40 and 3,944.94

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Solution

The fourth proportional to 8,945.12, 13,421.40 and 3,944.94 is: 5,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.12 : 13,421.40 = 3,944.94 : x
  2. Step 2: Convert to fraction form
    8,945.12/13,421.40 = 3,944.94/x
  3. Step 3: Cross multiply
    8,945.12x = 13,421.40 × 3,944.94
  4. Step 4: Simplify right side
    8,945.12x = 52,946,617.72
  5. Step 5: Solve for x
    x = 52,946,617.72/8,945.12
  6. Step 6: Final answer
    x = 5,919.05

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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.