Home / 11,613.68-17,420.52-5,039.72

Finding the Fourth Proportional to 11,613.68, 17,420.52 and 5,039.72

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Solution

The fourth proportional to 11,613.68, 17,420.52 and 5,039.72 is: 7,559.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,613.68 : 17,420.52 = 5,039.72 : x
  2. Step 2: Convert to fraction form
    11,613.68/17,420.52 = 5,039.72/x
  3. Step 3: Cross multiply
    11,613.68x = 17,420.52 × 5,039.72
  4. Step 4: Simplify right side
    11,613.68x = 87,794,511.83
  5. Step 5: Solve for x
    x = 87,794,511.83/11,613.68
  6. Step 6: Final answer
    x = 7,559.58

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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.