Home / 11,709.91-17,564.77-4,779.55

Finding the Fourth Proportional to 11,709.91, 17,564.77 and 4,779.55

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Solution

The fourth proportional to 11,709.91, 17,564.77 and 4,779.55 is: 7,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.91 : 17,564.77 = 4,779.55 : x
  2. Step 2: Convert to fraction form
    11,709.91/17,564.77 = 4,779.55/x
  3. Step 3: Cross multiply
    11,709.91x = 17,564.77 × 4,779.55
  4. Step 4: Simplify right side
    11,709.91x = 83,951,584.73
  5. Step 5: Solve for x
    x = 83,951,584.73/11,709.91
  6. Step 6: Final answer
    x = 7,169.28

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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.