Home / 9,121.16-13,659.96-4,667.87

Finding the Fourth Proportional to 9,121.16, 13,659.96 and 4,667.87

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Solution

The fourth proportional to 9,121.16, 13,659.96 and 4,667.87 is: 6,990.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.16 : 13,659.96 = 4,667.87 : x
  2. Step 2: Convert to fraction form
    9,121.16/13,659.96 = 4,667.87/x
  3. Step 3: Cross multiply
    9,121.16x = 13,659.96 × 4,667.87
  4. Step 4: Simplify right side
    9,121.16x = 63,762,917.49
  5. Step 5: Solve for x
    x = 63,762,917.49/9,121.16
  6. Step 6: Final answer
    x = 6,990.66

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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.