Home / 11,122.08-16,687.98-8,653.20

Finding the Fourth Proportional to 11,122.08, 16,687.98 and 8,653.20

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Solution

The fourth proportional to 11,122.08, 16,687.98 and 8,653.20 is: 12,983.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.08 : 16,687.98 = 8,653.20 : x
  2. Step 2: Convert to fraction form
    11,122.08/16,687.98 = 8,653.20/x
  3. Step 3: Cross multiply
    11,122.08x = 16,687.98 × 8,653.20
  4. Step 4: Simplify right side
    11,122.08x = 144,404,428.54
  5. Step 5: Solve for x
    x = 144,404,428.54/11,122.08
  6. Step 6: Final answer
    x = 12,983.58

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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.