Home / 13,176.09-18,183.03-7,207.74

Finding the Fourth Proportional to 13,176.09, 18,183.03 and 7,207.74

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Solution

The fourth proportional to 13,176.09, 18,183.03 and 7,207.74 is: 9,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.09 : 18,183.03 = 7,207.74 : x
  2. Step 2: Convert to fraction form
    13,176.09/18,183.03 = 7,207.74/x
  3. Step 3: Cross multiply
    13,176.09x = 18,183.03 × 7,207.74
  4. Step 4: Simplify right side
    13,176.09x = 131,058,552.65
  5. Step 5: Solve for x
    x = 131,058,552.65/13,176.09
  6. Step 6: Final answer
    x = 9,946.70

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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.