Home / 13,176.53-18,183.60-7,208.21

Finding the Fourth Proportional to 13,176.53, 18,183.60 and 7,208.21

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Solution

The fourth proportional to 13,176.53, 18,183.60 and 7,208.21 is: 9,947.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.53 : 18,183.60 = 7,208.21 : x
  2. Step 2: Convert to fraction form
    13,176.53/18,183.60 = 7,208.21/x
  3. Step 3: Cross multiply
    13,176.53x = 18,183.60 × 7,208.21
  4. Step 4: Simplify right side
    13,176.53x = 131,071,116.44
  5. Step 5: Solve for x
    x = 131,071,116.44/13,176.53
  6. Step 6: Final answer
    x = 9,947.32

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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.