Home / 11,905.53-17,864.14-4,789.48

Finding the Fourth Proportional to 11,905.53, 17,864.14 and 4,789.48

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Solution

The fourth proportional to 11,905.53, 17,864.14 and 4,789.48 is: 7,186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.53 : 17,864.14 = 4,789.48 : x
  2. Step 2: Convert to fraction form
    11,905.53/17,864.14 = 4,789.48/x
  3. Step 3: Cross multiply
    11,905.53x = 17,864.14 × 4,789.48
  4. Step 4: Simplify right side
    11,905.53x = 85,559,941.25
  5. Step 5: Solve for x
    x = 85,559,941.25/11,905.53
  6. Step 6: Final answer
    x = 7,186.57

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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.