Home / 11,867.45-17,766.99-7,869.33

Finding the Fourth Proportional to 11,867.45, 17,766.99 and 7,869.33

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Solution

The fourth proportional to 11,867.45, 17,766.99 and 7,869.33 is: 11,781.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.45 : 17,766.99 = 7,869.33 : x
  2. Step 2: Convert to fraction form
    11,867.45/17,766.99 = 7,869.33/x
  3. Step 3: Cross multiply
    11,867.45x = 17,766.99 × 7,869.33
  4. Step 4: Simplify right side
    11,867.45x = 139,814,307.42
  5. Step 5: Solve for x
    x = 139,814,307.42/11,867.45
  6. Step 6: Final answer
    x = 11,781.33

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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.