Home / 11,918.61-17,881.56-4,525.74

Finding the Fourth Proportional to 11,918.61, 17,881.56 and 4,525.74

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Solution

The fourth proportional to 11,918.61, 17,881.56 and 4,525.74 is: 6,789.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.61 : 17,881.56 = 4,525.74 : x
  2. Step 2: Convert to fraction form
    11,918.61/17,881.56 = 4,525.74/x
  3. Step 3: Cross multiply
    11,918.61x = 17,881.56 × 4,525.74
  4. Step 4: Simplify right side
    11,918.61x = 80,927,291.35
  5. Step 5: Solve for x
    x = 80,927,291.35/11,918.61
  6. Step 6: Final answer
    x = 6,789.99

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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.