Home / 11,907.29-17,864.64-4,887.88

Finding the Fourth Proportional to 11,907.29, 17,864.64 and 4,887.88

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Solution

The fourth proportional to 11,907.29, 17,864.64 and 4,887.88 is: 7,333.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.29 : 17,864.64 = 4,887.88 : x
  2. Step 2: Convert to fraction form
    11,907.29/17,864.64 = 4,887.88/x
  3. Step 3: Cross multiply
    11,907.29x = 17,864.64 × 4,887.88
  4. Step 4: Simplify right side
    11,907.29x = 87,320,171.90
  5. Step 5: Solve for x
    x = 87,320,171.90/11,907.29
  6. Step 6: Final answer
    x = 7,333.34

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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.