Home / 13,664.08-20,492.88-3,803.68

Finding the Fourth Proportional to 13,664.08, 20,492.88 and 3,803.68

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Solution

The fourth proportional to 13,664.08, 20,492.88 and 3,803.68 is: 5,704.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.08 : 20,492.88 = 3,803.68 : x
  2. Step 2: Convert to fraction form
    13,664.08/20,492.88 = 3,803.68/x
  3. Step 3: Cross multiply
    13,664.08x = 20,492.88 × 3,803.68
  4. Step 4: Simplify right side
    13,664.08x = 77,948,357.80
  5. Step 5: Solve for x
    x = 77,948,357.80/13,664.08
  6. Step 6: Final answer
    x = 5,704.62

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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.