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Finding the Fourth Proportional to 11,923.61, 17,897.19 and 8,951.72

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Solution

The fourth proportional to 11,923.61, 17,897.19 and 8,951.72 is: 13,436.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,923.61 : 17,897.19 = 8,951.72 : x
  2. Step 2: Convert to fraction form
    11,923.61/17,897.19 = 8,951.72/x
  3. Step 3: Cross multiply
    11,923.61x = 17,897.19 × 8,951.72
  4. Step 4: Simplify right side
    11,923.61x = 160,210,633.67
  5. Step 5: Solve for x
    x = 160,210,633.67/11,923.61
  6. Step 6: Final answer
    x = 13,436.42

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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.