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Finding the Fourth Proportional to 7,951.86, 11,933.95 and 5,503.79

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Solution

The fourth proportional to 7,951.86, 11,933.95 and 5,503.79 is: 8,259.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.86 : 11,933.95 = 5,503.79 : x
  2. Step 2: Convert to fraction form
    7,951.86/11,933.95 = 5,503.79/x
  3. Step 3: Cross multiply
    7,951.86x = 11,933.95 × 5,503.79
  4. Step 4: Simplify right side
    7,951.86x = 65,681,970.75
  5. Step 5: Solve for x
    x = 65,681,970.75/7,951.86
  6. Step 6: Final answer
    x = 8,259.95

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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.