Home / 11,709.62-17,561.77-3,387.77

Finding the Fourth Proportional to 11,709.62, 17,561.77 and 3,387.77

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Solution

The fourth proportional to 11,709.62, 17,561.77 and 3,387.77 is: 5,080.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.62 : 17,561.77 = 3,387.77 : x
  2. Step 2: Convert to fraction form
    11,709.62/17,561.77 = 3,387.77/x
  3. Step 3: Cross multiply
    11,709.62x = 17,561.77 × 3,387.77
  4. Step 4: Simplify right side
    11,709.62x = 59,495,237.55
  5. Step 5: Solve for x
    x = 59,495,237.55/11,709.62
  6. Step 6: Final answer
    x = 5,080.89

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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.