Home / 16,616.48-22,909.20-13,773.44

Finding the Fourth Proportional to 16,616.48, 22,909.20 and 13,773.44

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Solution

The fourth proportional to 16,616.48, 22,909.20 and 13,773.44 is: 18,989.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,616.48 : 22,909.20 = 13,773.44 : x
  2. Step 2: Convert to fraction form
    16,616.48/22,909.20 = 13,773.44/x
  3. Step 3: Cross multiply
    16,616.48x = 22,909.20 × 13,773.44
  4. Step 4: Simplify right side
    16,616.48x = 315,538,491.65
  5. Step 5: Solve for x
    x = 315,538,491.65/16,616.48
  6. Step 6: Final answer
    x = 18,989.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.