Home / 6,861.96-9,459.80-4,871.79

Finding the Fourth Proportional to 6,861.96, 9,459.80 and 4,871.79

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Solution

The fourth proportional to 6,861.96, 9,459.80 and 4,871.79 is: 6,716.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.96 : 9,459.80 = 4,871.79 : x
  2. Step 2: Convert to fraction form
    6,861.96/9,459.80 = 4,871.79/x
  3. Step 3: Cross multiply
    6,861.96x = 9,459.80 × 4,871.79
  4. Step 4: Simplify right side
    6,861.96x = 46,086,134.68
  5. Step 5: Solve for x
    x = 46,086,134.68/6,861.96
  6. Step 6: Final answer
    x = 6,716.18

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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.