Home / 12,183.72-16,814.70-7,707.66

Finding the Fourth Proportional to 12,183.72, 16,814.70 and 7,707.66

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Solution

The fourth proportional to 12,183.72, 16,814.70 and 7,707.66 is: 10,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.72 : 16,814.70 = 7,707.66 : x
  2. Step 2: Convert to fraction form
    12,183.72/16,814.70 = 7,707.66/x
  3. Step 3: Cross multiply
    12,183.72x = 16,814.70 × 7,707.66
  4. Step 4: Simplify right side
    12,183.72x = 129,601,990.60
  5. Step 5: Solve for x
    x = 129,601,990.60/12,183.72
  6. Step 6: Final answer
    x = 10,637.31

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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.