Home / 11,781.29-17,642.54-8,254.76

Finding the Fourth Proportional to 11,781.29, 17,642.54 and 8,254.76

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Solution

The fourth proportional to 11,781.29, 17,642.54 and 8,254.76 is: 12,361.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.29 : 17,642.54 = 8,254.76 : x
  2. Step 2: Convert to fraction form
    11,781.29/17,642.54 = 8,254.76/x
  3. Step 3: Cross multiply
    11,781.29x = 17,642.54 × 8,254.76
  4. Step 4: Simplify right side
    11,781.29x = 145,634,804.00
  5. Step 5: Solve for x
    x = 145,634,804.00/11,781.29
  6. Step 6: Final answer
    x = 12,361.54

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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.