Home / 11,615.72-17,423.26-4,689.96

Finding the Fourth Proportional to 11,615.72, 17,423.26 and 4,689.96

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Solution

The fourth proportional to 11,615.72, 17,423.26 and 4,689.96 is: 7,034.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.72 : 17,423.26 = 4,689.96 : x
  2. Step 2: Convert to fraction form
    11,615.72/17,423.26 = 4,689.96/x
  3. Step 3: Cross multiply
    11,615.72x = 17,423.26 × 4,689.96
  4. Step 4: Simplify right side
    11,615.72x = 81,714,392.47
  5. Step 5: Solve for x
    x = 81,714,392.47/11,615.72
  6. Step 6: Final answer
    x = 7,034.81

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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.