Home / 11,857.47-17,747.60-8,736.23

Finding the Fourth Proportional to 11,857.47, 17,747.60 and 8,736.23

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Solution

The fourth proportional to 11,857.47, 17,747.60 and 8,736.23 is: 13,075.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,857.47 : 17,747.60 = 8,736.23 : x
  2. Step 2: Convert to fraction form
    11,857.47/17,747.60 = 8,736.23/x
  3. Step 3: Cross multiply
    11,857.47x = 17,747.60 × 8,736.23
  4. Step 4: Simplify right side
    11,857.47x = 155,046,983.13
  5. Step 5: Solve for x
    x = 155,046,983.13/11,857.47
  6. Step 6: Final answer
    x = 13,075.89

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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.