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Finding the Fourth Proportional to 6,661.26, 9,188.10 and 4,005.88

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Solution

The fourth proportional to 6,661.26, 9,188.10 and 4,005.88 is: 5,525.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.26 : 9,188.10 = 4,005.88 : x
  2. Step 2: Convert to fraction form
    6,661.26/9,188.10 = 4,005.88/x
  3. Step 3: Cross multiply
    6,661.26x = 9,188.10 × 4,005.88
  4. Step 4: Simplify right side
    6,661.26x = 36,806,403.06
  5. Step 5: Solve for x
    x = 36,806,403.06/6,661.26
  6. Step 6: Final answer
    x = 5,525.44

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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.