Home / 11,133.72-16,619.31-10,311.48

Finding the Fourth Proportional to 11,133.72, 16,619.31 and 10,311.48

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Solution

The fourth proportional to 11,133.72, 16,619.31 and 10,311.48 is: 15,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.72 : 16,619.31 = 10,311.48 : x
  2. Step 2: Convert to fraction form
    11,133.72/16,619.31 = 10,311.48/x
  3. Step 3: Cross multiply
    11,133.72x = 16,619.31 × 10,311.48
  4. Step 4: Simplify right side
    11,133.72x = 171,369,682.68
  5. Step 5: Solve for x
    x = 171,369,682.68/11,133.72
  6. Step 6: Final answer
    x = 15,391.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.