Home / 13,176.36-18,183.32-7,126.61

Finding the Fourth Proportional to 13,176.36, 18,183.32 and 7,126.61

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Solution

The fourth proportional to 13,176.36, 18,183.32 and 7,126.61 is: 9,834.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.36 : 18,183.32 = 7,126.61 : x
  2. Step 2: Convert to fraction form
    13,176.36/18,183.32 = 7,126.61/x
  3. Step 3: Cross multiply
    13,176.36x = 18,183.32 × 7,126.61
  4. Step 4: Simplify right side
    13,176.36x = 129,585,429.02
  5. Step 5: Solve for x
    x = 129,585,429.02/13,176.36
  6. Step 6: Final answer
    x = 9,834.69

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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.