Home / 14,550.72-20,013.12-12,628.80

Finding the Fourth Proportional to 14,550.72, 20,013.12 and 12,628.80

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Solution

The fourth proportional to 14,550.72, 20,013.12 and 12,628.80 is: 17,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,550.72 : 20,013.12 = 12,628.80 : x
  2. Step 2: Convert to fraction form
    14,550.72/20,013.12 = 12,628.80/x
  3. Step 3: Cross multiply
    14,550.72x = 20,013.12 × 12,628.80
  4. Step 4: Simplify right side
    14,550.72x = 252,741,689.86
  5. Step 5: Solve for x
    x = 252,741,689.86/14,550.72
  6. Step 6: Final answer
    x = 17,369.70

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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.