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Finding the Fourth Proportional to 16,672.80, 25,009.20 and 11,108.10

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Solution

The fourth proportional to 16,672.80, 25,009.20 and 11,108.10 is: 16,662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,672.80 : 25,009.20 = 11,108.10 : x
  2. Step 2: Convert to fraction form
    16,672.80/25,009.20 = 11,108.10/x
  3. Step 3: Cross multiply
    16,672.80x = 25,009.20 × 11,108.10
  4. Step 4: Simplify right side
    16,672.80x = 277,804,694.52
  5. Step 5: Solve for x
    x = 277,804,694.52/16,672.80
  6. Step 6: Final answer
    x = 16,662.15

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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.