Home / 11,718.88-16,166.60-6,748

Finding the Fourth Proportional to 11,718.88, 16,166.60 and 6,748

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Solution

The fourth proportional to 11,718.88, 16,166.60 and 6,748 is: 9,309.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.88 : 16,166.60 = 6,748 : x
  2. Step 2: Convert to fraction form
    11,718.88/16,166.60 = 6,748/x
  3. Step 3: Cross multiply
    11,718.88x = 16,166.60 × 6,748
  4. Step 4: Simplify right side
    11,718.88x = 109,092,216.80
  5. Step 5: Solve for x
    x = 109,092,216.80/11,718.88
  6. Step 6: Final answer
    x = 9,309.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.