Home / 9,865.92-13,611.42-6,331.08

Finding the Fourth Proportional to 9,865.92, 13,611.42 and 6,331.08

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Solution

The fourth proportional to 9,865.92, 13,611.42 and 6,331.08 is: 8,734.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,865.92 : 13,611.42 = 6,331.08 : x
  2. Step 2: Convert to fraction form
    9,865.92/13,611.42 = 6,331.08/x
  3. Step 3: Cross multiply
    9,865.92x = 13,611.42 × 6,331.08
  4. Step 4: Simplify right side
    9,865.92x = 86,174,988.93
  5. Step 5: Solve for x
    x = 86,174,988.93/9,865.92
  6. Step 6: Final answer
    x = 8,734.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.