Home / 13,446.24-20,148.28-8,505.44

Finding the Fourth Proportional to 13,446.24, 20,148.28 and 8,505.44

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Solution

The fourth proportional to 13,446.24, 20,148.28 and 8,505.44 is: 12,744.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.24 : 20,148.28 = 8,505.44 : x
  2. Step 2: Convert to fraction form
    13,446.24/20,148.28 = 8,505.44/x
  3. Step 3: Cross multiply
    13,446.24x = 20,148.28 × 8,505.44
  4. Step 4: Simplify right side
    13,446.24x = 171,369,949.95
  5. Step 5: Solve for x
    x = 171,369,949.95/13,446.24
  6. Step 6: Final answer
    x = 12,744.83

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1.5x scale

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.