Home / 11,932.80-16,464.41-7,154.21

Finding the Fourth Proportional to 11,932.80, 16,464.41 and 7,154.21

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Solution

The fourth proportional to 11,932.80, 16,464.41 and 7,154.21 is: 9,871.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,932.80 : 16,464.41 = 7,154.21 : x
  2. Step 2: Convert to fraction form
    11,932.80/16,464.41 = 7,154.21/x
  3. Step 3: Cross multiply
    11,932.80x = 16,464.41 × 7,154.21
  4. Step 4: Simplify right side
    11,932.80x = 117,789,728.57
  5. Step 5: Solve for x
    x = 117,789,728.57/11,932.80
  6. Step 6: Final answer
    x = 9,871.09

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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.