Home / 12,492.09-17,240.84-8,028.58

Finding the Fourth Proportional to 12,492.09, 17,240.84 and 8,028.58

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Solution

The fourth proportional to 12,492.09, 17,240.84 and 8,028.58 is: 11,080.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.09 : 17,240.84 = 8,028.58 : x
  2. Step 2: Convert to fraction form
    12,492.09/17,240.84 = 8,028.58/x
  3. Step 3: Cross multiply
    12,492.09x = 17,240.84 × 8,028.58
  4. Step 4: Simplify right side
    12,492.09x = 138,419,463.21
  5. Step 5: Solve for x
    x = 138,419,463.21/12,492.09
  6. Step 6: Final answer
    x = 11,080.57

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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.