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Finding the Fourth Proportional to 13,008, 17,951.04 and 7,418.88

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Solution

The fourth proportional to 13,008, 17,951.04 and 7,418.88 is: 10,238.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008 : 17,951.04 = 7,418.88 : x
  2. Step 2: Convert to fraction form
    13,008/17,951.04 = 7,418.88/x
  3. Step 3: Cross multiply
    13,008x = 17,951.04 × 7,418.88
  4. Step 4: Simplify right side
    13,008x = 133,176,611.64
  5. Step 5: Solve for x
    x = 133,176,611.64/13,008
  6. Step 6: Final answer
    x = 10,238.05

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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.