Home / 11,895.75-17,854.44-5,320.71

Finding the Fourth Proportional to 11,895.75, 17,854.44 and 5,320.71

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Solution

The fourth proportional to 11,895.75, 17,854.44 and 5,320.71 is: 7,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,895.75 : 17,854.44 = 5,320.71 : x
  2. Step 2: Convert to fraction form
    11,895.75/17,854.44 = 5,320.71/x
  3. Step 3: Cross multiply
    11,895.75x = 17,854.44 × 5,320.71
  4. Step 4: Simplify right side
    11,895.75x = 94,998,297.45
  5. Step 5: Solve for x
    x = 94,998,297.45/11,895.75
  6. Step 6: Final answer
    x = 7,985.90

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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.