Home / 12,183.04-16,812.84-7,151.16

Finding the Fourth Proportional to 12,183.04, 16,812.84 and 7,151.16

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Solution

The fourth proportional to 12,183.04, 16,812.84 and 7,151.16 is: 9,868.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.04 : 16,812.84 = 7,151.16 : x
  2. Step 2: Convert to fraction form
    12,183.04/16,812.84 = 7,151.16/x
  3. Step 3: Cross multiply
    12,183.04x = 16,812.84 × 7,151.16
  4. Step 4: Simplify right side
    12,183.04x = 120,231,308.89
  5. Step 5: Solve for x
    x = 120,231,308.89/12,183.04
  6. Step 6: Final answer
    x = 9,868.74

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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.