Home / 8,905.09-13,358.85-3,709.75

Finding the Fourth Proportional to 8,905.09, 13,358.85 and 3,709.75

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Solution

The fourth proportional to 8,905.09, 13,358.85 and 3,709.75 is: 5,565.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.09 : 13,358.85 = 3,709.75 : x
  2. Step 2: Convert to fraction form
    8,905.09/13,358.85 = 3,709.75/x
  3. Step 3: Cross multiply
    8,905.09x = 13,358.85 × 3,709.75
  4. Step 4: Simplify right side
    8,905.09x = 49,557,993.79
  5. Step 5: Solve for x
    x = 49,557,993.79/8,905.09
  6. Step 6: Final answer
    x = 5,565.13

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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.