Home / 15,382.16-21,226.92-8,668.16

Finding the Fourth Proportional to 15,382.16, 21,226.92 and 8,668.16

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Solution

The fourth proportional to 15,382.16, 21,226.92 and 8,668.16 is: 11,961.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,382.16 : 21,226.92 = 8,668.16 : x
  2. Step 2: Convert to fraction form
    15,382.16/21,226.92 = 8,668.16/x
  3. Step 3: Cross multiply
    15,382.16x = 21,226.92 × 8,668.16
  4. Step 4: Simplify right side
    15,382.16x = 183,998,338.87
  5. Step 5: Solve for x
    x = 183,998,338.87/15,382.16
  6. Step 6: Final answer
    x = 11,961.80

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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.