Home / 11,555.55-17,333.28-2,790.45

Finding the Fourth Proportional to 11,555.55, 17,333.28 and 2,790.45

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Solution

The fourth proportional to 11,555.55, 17,333.28 and 2,790.45 is: 4,185.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,555.55 : 17,333.28 = 2,790.45 : x
  2. Step 2: Convert to fraction form
    11,555.55/17,333.28 = 2,790.45/x
  3. Step 3: Cross multiply
    11,555.55x = 17,333.28 × 2,790.45
  4. Step 4: Simplify right side
    11,555.55x = 48,367,651.18
  5. Step 5: Solve for x
    x = 48,367,651.18/11,555.55
  6. Step 6: Final answer
    x = 4,185.66

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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.