Home / 11,388.60-17,077.77-4,811.40

Finding the Fourth Proportional to 11,388.60, 17,077.77 and 4,811.40

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Solution

The fourth proportional to 11,388.60, 17,077.77 and 4,811.40 is: 7,214.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.60 : 17,077.77 = 4,811.40 : x
  2. Step 2: Convert to fraction form
    11,388.60/17,077.77 = 4,811.40/x
  3. Step 3: Cross multiply
    11,388.60x = 17,077.77 × 4,811.40
  4. Step 4: Simplify right side
    11,388.60x = 82,167,982.58
  5. Step 5: Solve for x
    x = 82,167,982.58/11,388.60
  6. Step 6: Final answer
    x = 7,214.93

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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.