Home / 11,711.25-17,567.01-4,785.75

Finding the Fourth Proportional to 11,711.25, 17,567.01 and 4,785.75

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Solution

The fourth proportional to 11,711.25, 17,567.01 and 4,785.75 is: 7,178.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.25 : 17,567.01 = 4,785.75 : x
  2. Step 2: Convert to fraction form
    11,711.25/17,567.01 = 4,785.75/x
  3. Step 3: Cross multiply
    11,711.25x = 17,567.01 × 4,785.75
  4. Step 4: Simplify right side
    11,711.25x = 84,071,318.11
  5. Step 5: Solve for x
    x = 84,071,318.11/11,711.25
  6. Step 6: Final answer
    x = 7,178.68

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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.