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Finding the Fourth Proportional to 6,910.07, 9,459.60 and 6,860.66

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Solution

The fourth proportional to 6,910.07, 9,459.60 and 6,860.66 is: 9,391.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,910.07 : 9,459.60 = 6,860.66 : x
  2. Step 2: Convert to fraction form
    6,910.07/9,459.60 = 6,860.66/x
  3. Step 3: Cross multiply
    6,910.07x = 9,459.60 × 6,860.66
  4. Step 4: Simplify right side
    6,910.07x = 64,899,026.31
  5. Step 5: Solve for x
    x = 64,899,026.31/6,910.07
  6. Step 6: Final answer
    x = 9,391.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.