Home / 13,665.60-20,492.64-4,429.44

Finding the Fourth Proportional to 13,665.60, 20,492.64 and 4,429.44

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Solution

The fourth proportional to 13,665.60, 20,492.64 and 4,429.44 is: 6,642.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665.60 : 20,492.64 = 4,429.44 : x
  2. Step 2: Convert to fraction form
    13,665.60/20,492.64 = 4,429.44/x
  3. Step 3: Cross multiply
    13,665.60x = 20,492.64 × 4,429.44
  4. Step 4: Simplify right side
    13,665.60x = 90,770,919.32
  5. Step 5: Solve for x
    x = 90,770,919.32/13,665.60
  6. Step 6: Final answer
    x = 6,642.29

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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.