Home / 11,955.76-17,933.64-5,380.72

Finding the Fourth Proportional to 11,955.76, 17,933.64 and 5,380.72

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Solution

The fourth proportional to 11,955.76, 17,933.64 and 5,380.72 is: 8,071.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.76 : 17,933.64 = 5,380.72 : x
  2. Step 2: Convert to fraction form
    11,955.76/17,933.64 = 5,380.72/x
  3. Step 3: Cross multiply
    11,955.76x = 17,933.64 × 5,380.72
  4. Step 4: Simplify right side
    11,955.76x = 96,495,895.42
  5. Step 5: Solve for x
    x = 96,495,895.42/11,955.76
  6. Step 6: Final answer
    x = 8,071.08

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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.