Home / 9,108.72-13,664.91-2,869.71

Finding the Fourth Proportional to 9,108.72, 13,664.91 and 2,869.71

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Solution

The fourth proportional to 9,108.72, 13,664.91 and 2,869.71 is: 4,305.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.72 : 13,664.91 = 2,869.71 : x
  2. Step 2: Convert to fraction form
    9,108.72/13,664.91 = 2,869.71/x
  3. Step 3: Cross multiply
    9,108.72x = 13,664.91 × 2,869.71
  4. Step 4: Simplify right side
    9,108.72x = 39,214,328.88
  5. Step 5: Solve for x
    x = 39,214,328.88/9,108.72
  6. Step 6: Final answer
    x = 4,305.14

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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.