Home / 11,775.04-16,249.92-6,469.76

Finding the Fourth Proportional to 11,775.04, 16,249.92 and 6,469.76

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Solution

The fourth proportional to 11,775.04, 16,249.92 and 6,469.76 is: 8,928.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.04 : 16,249.92 = 6,469.76 : x
  2. Step 2: Convert to fraction form
    11,775.04/16,249.92 = 6,469.76/x
  3. Step 3: Cross multiply
    11,775.04x = 16,249.92 × 6,469.76
  4. Step 4: Simplify right side
    11,775.04x = 105,133,082.42
  5. Step 5: Solve for x
    x = 105,133,082.42/11,775.04
  6. Step 6: Final answer
    x = 8,928.47

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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.