Home / 11,818.14-17,717.64-4,421.54

Finding the Fourth Proportional to 11,818.14, 17,717.64 and 4,421.54

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Solution

The fourth proportional to 11,818.14, 17,717.64 and 4,421.54 is: 6,628.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.14 : 17,717.64 = 4,421.54 : x
  2. Step 2: Convert to fraction form
    11,818.14/17,717.64 = 4,421.54/x
  3. Step 3: Cross multiply
    11,818.14x = 17,717.64 × 4,421.54
  4. Step 4: Simplify right side
    11,818.14x = 78,339,165.38
  5. Step 5: Solve for x
    x = 78,339,165.38/11,818.14
  6. Step 6: Final answer
    x = 6,628.72

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1.5x scale

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.