Home / 11,869.61-17,805.99-4,372.15

Finding the Fourth Proportional to 11,869.61, 17,805.99 and 4,372.15

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Solution

The fourth proportional to 11,869.61, 17,805.99 and 4,372.15 is: 6,558.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869.61 : 17,805.99 = 4,372.15 : x
  2. Step 2: Convert to fraction form
    11,869.61/17,805.99 = 4,372.15/x
  3. Step 3: Cross multiply
    11,869.61x = 17,805.99 × 4,372.15
  4. Step 4: Simplify right side
    11,869.61x = 77,850,459.18
  5. Step 5: Solve for x
    x = 77,850,459.18/11,869.61
  6. Step 6: Final answer
    x = 6,558.81

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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.