Home / 11,115.60-16,656.96-4,869.84

Finding the Fourth Proportional to 11,115.60, 16,656.96 and 4,869.84

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Solution

The fourth proportional to 11,115.60, 16,656.96 and 4,869.84 is: 7,297.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.60 : 16,656.96 = 4,869.84 : x
  2. Step 2: Convert to fraction form
    11,115.60/16,656.96 = 4,869.84/x
  3. Step 3: Cross multiply
    11,115.60x = 16,656.96 × 4,869.84
  4. Step 4: Simplify right side
    11,115.60x = 81,116,730.09
  5. Step 5: Solve for x
    x = 81,116,730.09/11,115.60
  6. Step 6: Final answer
    x = 7,297.56

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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.