Home / 11,110.80-16,644.60-6,715.20

Finding the Fourth Proportional to 11,110.80, 16,644.60 and 6,715.20

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Solution

The fourth proportional to 11,110.80, 16,644.60 and 6,715.20 is: 10,059.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,110.80 : 16,644.60 = 6,715.20 : x
  2. Step 2: Convert to fraction form
    11,110.80/16,644.60 = 6,715.20/x
  3. Step 3: Cross multiply
    11,110.80x = 16,644.60 × 6,715.20
  4. Step 4: Simplify right side
    11,110.80x = 111,771,817.92
  5. Step 5: Solve for x
    x = 111,771,817.92/11,110.80
  6. Step 6: Final answer
    x = 10,059.75

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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.