Home / 12,217.13-16,861.46-7,741.31

Finding the Fourth Proportional to 12,217.13, 16,861.46 and 7,741.31

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Solution

The fourth proportional to 12,217.13, 16,861.46 and 7,741.31 is: 10,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.13 : 16,861.46 = 7,741.31 : x
  2. Step 2: Convert to fraction form
    12,217.13/16,861.46 = 7,741.31/x
  3. Step 3: Cross multiply
    12,217.13x = 16,861.46 × 7,741.31
  4. Step 4: Simplify right side
    12,217.13x = 130,529,685.25
  5. Step 5: Solve for x
    x = 130,529,685.25/12,217.13
  6. Step 6: Final answer
    x = 10,684.15

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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.