Home / 11,869.64-17,795.67-7,188.55

Finding the Fourth Proportional to 11,869.64, 17,795.67 and 7,188.55

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Solution

The fourth proportional to 11,869.64, 17,795.67 and 7,188.55 is: 10,777.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869.64 : 17,795.67 = 7,188.55 : x
  2. Step 2: Convert to fraction form
    11,869.64/17,795.67 = 7,188.55/x
  3. Step 3: Cross multiply
    11,869.64x = 17,795.67 × 7,188.55
  4. Step 4: Simplify right side
    11,869.64x = 127,924,992.13
  5. Step 5: Solve for x
    x = 127,924,992.13/11,869.64
  6. Step 6: Final answer
    x = 10,777.50

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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.