Home / 17,129.07-25,676.60-7,776

Finding the Fourth Proportional to 17,129.07, 25,676.60 and 7,776

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Solution

The fourth proportional to 17,129.07, 25,676.60 and 7,776 is: 11,656.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,129.07 : 25,676.60 = 7,776 : x
  2. Step 2: Convert to fraction form
    17,129.07/25,676.60 = 7,776/x
  3. Step 3: Cross multiply
    17,129.07x = 25,676.60 × 7,776
  4. Step 4: Simplify right side
    17,129.07x = 199,661,202.72
  5. Step 5: Solve for x
    x = 199,661,202.72/17,129.07
  6. Step 6: Final answer
    x = 11,656.28

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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.