Home / 11,021.12-16,536.16-7,076.80

Finding the Fourth Proportional to 11,021.12, 16,536.16 and 7,076.80

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Solution

The fourth proportional to 11,021.12, 16,536.16 and 7,076.80 is: 10,618.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.12 : 16,536.16 = 7,076.80 : x
  2. Step 2: Convert to fraction form
    11,021.12/16,536.16 = 7,076.80/x
  3. Step 3: Cross multiply
    11,021.12x = 16,536.16 × 7,076.80
  4. Step 4: Simplify right side
    11,021.12x = 117,023,097.09
  5. Step 5: Solve for x
    x = 117,023,097.09/11,021.12
  6. Step 6: Final answer
    x = 10,618.08

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1.5x scale

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.