Home / 9,318.12-12,858.66-6,669.96

Finding the Fourth Proportional to 9,318.12, 12,858.66 and 6,669.96

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Solution

The fourth proportional to 9,318.12, 12,858.66 and 6,669.96 is: 9,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.12 : 12,858.66 = 6,669.96 : x
  2. Step 2: Convert to fraction form
    9,318.12/12,858.66 = 6,669.96/x
  3. Step 3: Cross multiply
    9,318.12x = 12,858.66 × 6,669.96
  4. Step 4: Simplify right side
    9,318.12x = 85,766,747.85
  5. Step 5: Solve for x
    x = 85,766,747.85/9,318.12
  6. Step 6: Final answer
    x = 9,204.30

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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.