Home / 11,686.20-17,529.30-4,760.70

Finding the Fourth Proportional to 11,686.20, 17,529.30 and 4,760.70

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Solution

The fourth proportional to 11,686.20, 17,529.30 and 4,760.70 is: 7,141.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.20 : 17,529.30 = 4,760.70 : x
  2. Step 2: Convert to fraction form
    11,686.20/17,529.30 = 4,760.70/x
  3. Step 3: Cross multiply
    11,686.20x = 17,529.30 × 4,760.70
  4. Step 4: Simplify right side
    11,686.20x = 83,451,738.51
  5. Step 5: Solve for x
    x = 83,451,738.51/11,686.20
  6. Step 6: Final answer
    x = 7,141.05

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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.