Home / 11,107.72-16,655.10-6,481

Finding the Fourth Proportional to 11,107.72, 16,655.10 and 6,481

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Solution

The fourth proportional to 11,107.72, 16,655.10 and 6,481 is: 9,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.72 : 16,655.10 = 6,481 : x
  2. Step 2: Convert to fraction form
    11,107.72/16,655.10 = 6,481/x
  3. Step 3: Cross multiply
    11,107.72x = 16,655.10 × 6,481
  4. Step 4: Simplify right side
    11,107.72x = 107,941,703.10
  5. Step 5: Solve for x
    x = 107,941,703.10/11,107.72
  6. Step 6: Final answer
    x = 9,717.72

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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.