Home / 16,144.08-22,288.77-12,800.40

Finding the Fourth Proportional to 16,144.08, 22,288.77 and 12,800.40

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Solution

The fourth proportional to 16,144.08, 22,288.77 and 12,800.40 is: 17,672.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,144.08 : 22,288.77 = 12,800.40 : x
  2. Step 2: Convert to fraction form
    16,144.08/22,288.77 = 12,800.40/x
  3. Step 3: Cross multiply
    16,144.08x = 22,288.77 × 12,800.40
  4. Step 4: Simplify right side
    16,144.08x = 285,305,171.51
  5. Step 5: Solve for x
    x = 285,305,171.51/16,144.08
  6. Step 6: Final answer
    x = 17,672.43

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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.