Home / 11,131.10-16,689.24-6,678.74

Finding the Fourth Proportional to 11,131.10, 16,689.24 and 6,678.74

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Solution

The fourth proportional to 11,131.10, 16,689.24 and 6,678.74 is: 10,013.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.10 : 16,689.24 = 6,678.74 : x
  2. Step 2: Convert to fraction form
    11,131.10/16,689.24 = 6,678.74/x
  3. Step 3: Cross multiply
    11,131.10x = 16,689.24 × 6,678.74
  4. Step 4: Simplify right side
    11,131.10x = 111,463,094.76
  5. Step 5: Solve for x
    x = 111,463,094.76/11,131.10
  6. Step 6: Final answer
    x = 10,013.66

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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.