Home / 11,482.20-17,207.10-7,086.60

Finding the Fourth Proportional to 11,482.20, 17,207.10 and 7,086.60

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Solution

The fourth proportional to 11,482.20, 17,207.10 and 7,086.60 is: 10,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,482.20 : 17,207.10 = 7,086.60 : x
  2. Step 2: Convert to fraction form
    11,482.20/17,207.10 = 7,086.60/x
  3. Step 3: Cross multiply
    11,482.20x = 17,207.10 × 7,086.60
  4. Step 4: Simplify right side
    11,482.20x = 121,939,834.86
  5. Step 5: Solve for x
    x = 121,939,834.86/11,482.20
  6. Step 6: Final answer
    x = 10,619.90

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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.