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Finding the Fourth Proportional to 9,305.55, 13,960.76 and 5,406.62

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Solution

The fourth proportional to 9,305.55, 13,960.76 and 5,406.62 is: 8,111.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,305.55 : 13,960.76 = 5,406.62 : x
  2. Step 2: Convert to fraction form
    9,305.55/13,960.76 = 5,406.62/x
  3. Step 3: Cross multiply
    9,305.55x = 13,960.76 × 5,406.62
  4. Step 4: Simplify right side
    9,305.55x = 75,480,427.39
  5. Step 5: Solve for x
    x = 75,480,427.39/9,305.55
  6. Step 6: Final answer
    x = 8,111.33

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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.