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Finding the Fourth Proportional to 9,179.39, 13,769.39 and 5,629.77

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Solution

The fourth proportional to 9,179.39, 13,769.39 and 5,629.77 is: 8,444.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.39 : 13,769.39 = 5,629.77 : x
  2. Step 2: Convert to fraction form
    9,179.39/13,769.39 = 5,629.77/x
  3. Step 3: Cross multiply
    9,179.39x = 13,769.39 × 5,629.77
  4. Step 4: Simplify right side
    9,179.39x = 77,518,512.81
  5. Step 5: Solve for x
    x = 77,518,512.81/9,179.39
  6. Step 6: Final answer
    x = 8,444.84

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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.