Home / 11,155.70-16,733.75-5,311.14

Finding the Fourth Proportional to 11,155.70, 16,733.75 and 5,311.14

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Solution

The fourth proportional to 11,155.70, 16,733.75 and 5,311.14 is: 7,966.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.70 : 16,733.75 = 5,311.14 : x
  2. Step 2: Convert to fraction form
    11,155.70/16,733.75 = 5,311.14/x
  3. Step 3: Cross multiply
    11,155.70x = 16,733.75 × 5,311.14
  4. Step 4: Simplify right side
    11,155.70x = 88,875,262.42
  5. Step 5: Solve for x
    x = 88,875,262.42/11,155.70
  6. Step 6: Final answer
    x = 7,966.81

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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.