Home / 11,181.80-16,758.30-5,325.80

Finding the Fourth Proportional to 11,181.80, 16,758.30 and 5,325.80

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Solution

The fourth proportional to 11,181.80, 16,758.30 and 5,325.80 is: 7,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.80 : 16,758.30 = 5,325.80 : x
  2. Step 2: Convert to fraction form
    11,181.80/16,758.30 = 5,325.80/x
  3. Step 3: Cross multiply
    11,181.80x = 16,758.30 × 5,325.80
  4. Step 4: Simplify right side
    11,181.80x = 89,251,354.14
  5. Step 5: Solve for x
    x = 89,251,354.14/11,181.80
  6. Step 6: Final answer
    x = 7,981.84

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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.