Home / 15,882.09-21,917.43-8,808.36

Finding the Fourth Proportional to 15,882.09, 21,917.43 and 8,808.36

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Solution

The fourth proportional to 15,882.09, 21,917.43 and 8,808.36 is: 12,155.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,882.09 : 21,917.43 = 8,808.36 : x
  2. Step 2: Convert to fraction form
    15,882.09/21,917.43 = 8,808.36/x
  3. Step 3: Cross multiply
    15,882.09x = 21,917.43 × 8,808.36
  4. Step 4: Simplify right side
    15,882.09x = 193,056,613.71
  5. Step 5: Solve for x
    x = 193,056,613.71/15,882.09
  6. Step 6: Final answer
    x = 12,155.62

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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.