Home / 13,176.21-18,183.51-7,208.13

Finding the Fourth Proportional to 13,176.21, 18,183.51 and 7,208.13

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Solution

The fourth proportional to 13,176.21, 18,183.51 and 7,208.13 is: 9,947.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.21 : 18,183.51 = 7,208.13 : x
  2. Step 2: Convert to fraction form
    13,176.21/18,183.51 = 7,208.13/x
  3. Step 3: Cross multiply
    13,176.21x = 18,183.51 × 7,208.13
  4. Step 4: Simplify right side
    13,176.21x = 131,069,103.94
  5. Step 5: Solve for x
    x = 131,069,103.94/13,176.21
  6. Step 6: Final answer
    x = 9,947.41

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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.