Home / 13,050.20-17,998.80-11,956.70

Finding the Fourth Proportional to 13,050.20, 17,998.80 and 11,956.70

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Solution

The fourth proportional to 13,050.20, 17,998.80 and 11,956.70 is: 16,490.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,050.20 : 17,998.80 = 11,956.70 : x
  2. Step 2: Convert to fraction form
    13,050.20/17,998.80 = 11,956.70/x
  3. Step 3: Cross multiply
    13,050.20x = 17,998.80 × 11,956.70
  4. Step 4: Simplify right side
    13,050.20x = 215,206,251.96
  5. Step 5: Solve for x
    x = 215,206,251.96/13,050.20
  6. Step 6: Final answer
    x = 16,490.65

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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.