Home / 12,296.89-16,976.70-8,117.29

Finding the Fourth Proportional to 12,296.89, 16,976.70 and 8,117.29

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Solution

The fourth proportional to 12,296.89, 16,976.70 and 8,117.29 is: 11,206.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,296.89 : 16,976.70 = 8,117.29 : x
  2. Step 2: Convert to fraction form
    12,296.89/16,976.70 = 8,117.29/x
  3. Step 3: Cross multiply
    12,296.89x = 16,976.70 × 8,117.29
  4. Step 4: Simplify right side
    12,296.89x = 137,804,797.14
  5. Step 5: Solve for x
    x = 137,804,797.14/12,296.89
  6. Step 6: Final answer
    x = 11,206.48

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1.5x scale

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.