Home / 11,002.80-16,518.78-10,871.58

Finding the Fourth Proportional to 11,002.80, 16,518.78 and 10,871.58

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Solution

The fourth proportional to 11,002.80, 16,518.78 and 10,871.58 is: 16,321.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,002.80 : 16,518.78 = 10,871.58 : x
  2. Step 2: Convert to fraction form
    11,002.80/16,518.78 = 10,871.58/x
  3. Step 3: Cross multiply
    11,002.80x = 16,518.78 × 10,871.58
  4. Step 4: Simplify right side
    11,002.80x = 179,585,238.27
  5. Step 5: Solve for x
    x = 179,585,238.27/11,002.80
  6. Step 6: Final answer
    x = 16,321.78

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1.5x scale

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.