Home / 11,958.49-16,500.85-6,921.72

Finding the Fourth Proportional to 11,958.49, 16,500.85 and 6,921.72

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Solution

The fourth proportional to 11,958.49, 16,500.85 and 6,921.72 is: 9,550.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,958.49 : 16,500.85 = 6,921.72 : x
  2. Step 2: Convert to fraction form
    11,958.49/16,500.85 = 6,921.72/x
  3. Step 3: Cross multiply
    11,958.49x = 16,500.85 × 6,921.72
  4. Step 4: Simplify right side
    11,958.49x = 114,214,228.85
  5. Step 5: Solve for x
    x = 114,214,228.85/11,958.49
  6. Step 6: Final answer
    x = 9,550.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.