Home / 11,815.28-17,717.58-3,492.42

Finding the Fourth Proportional to 11,815.28, 17,717.58 and 3,492.42

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Solution

The fourth proportional to 11,815.28, 17,717.58 and 3,492.42 is: 5,237.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.28 : 17,717.58 = 3,492.42 : x
  2. Step 2: Convert to fraction form
    11,815.28/17,717.58 = 3,492.42/x
  3. Step 3: Cross multiply
    11,815.28x = 17,717.58 × 3,492.42
  4. Step 4: Simplify right side
    11,815.28x = 61,877,230.74
  5. Step 5: Solve for x
    x = 61,877,230.74/11,815.28
  6. Step 6: Final answer
    x = 5,237.05

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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.