Home / 12,228.11-16,874.55-7,192.88

Finding the Fourth Proportional to 12,228.11, 16,874.55 and 7,192.88

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Solution

The fourth proportional to 12,228.11, 16,874.55 and 7,192.88 is: 9,926.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228.11 : 16,874.55 = 7,192.88 : x
  2. Step 2: Convert to fraction form
    12,228.11/16,874.55 = 7,192.88/x
  3. Step 3: Cross multiply
    12,228.11x = 16,874.55 × 7,192.88
  4. Step 4: Simplify right side
    12,228.11x = 121,376,528.83
  5. Step 5: Solve for x
    x = 121,376,528.83/12,228.11
  6. Step 6: Final answer
    x = 9,926.03

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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.