Home / 10,913.91-16,370.99-8,736.48

Finding the Fourth Proportional to 10,913.91, 16,370.99 and 8,736.48

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Solution

The fourth proportional to 10,913.91, 16,370.99 and 8,736.48 is: 13,104.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.91 : 16,370.99 = 8,736.48 : x
  2. Step 2: Convert to fraction form
    10,913.91/16,370.99 = 8,736.48/x
  3. Step 3: Cross multiply
    10,913.91x = 16,370.99 × 8,736.48
  4. Step 4: Simplify right side
    10,913.91x = 143,024,837.27
  5. Step 5: Solve for x
    x = 143,024,837.27/10,913.91
  6. Step 6: Final answer
    x = 13,104.82

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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.