Home / 11,057.80-16,552.14-8,443.40

Finding the Fourth Proportional to 11,057.80, 16,552.14 and 8,443.40

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Solution

The fourth proportional to 11,057.80, 16,552.14 and 8,443.40 is: 12,638.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,057.80 : 16,552.14 = 8,443.40 : x
  2. Step 2: Convert to fraction form
    11,057.80/16,552.14 = 8,443.40/x
  3. Step 3: Cross multiply
    11,057.80x = 16,552.14 × 8,443.40
  4. Step 4: Simplify right side
    11,057.80x = 139,756,338.88
  5. Step 5: Solve for x
    x = 139,756,338.88/11,057.80
  6. Step 6: Final answer
    x = 12,638.71

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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.