Home / 11,820.48-17,730.72-2,935.80

Finding the Fourth Proportional to 11,820.48, 17,730.72 and 2,935.80

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Solution

The fourth proportional to 11,820.48, 17,730.72 and 2,935.80 is: 4,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.48 : 17,730.72 = 2,935.80 : x
  2. Step 2: Convert to fraction form
    11,820.48/17,730.72 = 2,935.80/x
  3. Step 3: Cross multiply
    11,820.48x = 17,730.72 × 2,935.80
  4. Step 4: Simplify right side
    11,820.48x = 52,053,847.78
  5. Step 5: Solve for x
    x = 52,053,847.78/11,820.48
  6. Step 6: Final answer
    x = 4,403.70

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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.