Home / 13,176.12-18,183.50-7,208.16

Finding the Fourth Proportional to 13,176.12, 18,183.50 and 7,208.16

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Solution

The fourth proportional to 13,176.12, 18,183.50 and 7,208.16 is: 9,947.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.12 : 18,183.50 = 7,208.16 : x
  2. Step 2: Convert to fraction form
    13,176.12/18,183.50 = 7,208.16/x
  3. Step 3: Cross multiply
    13,176.12x = 18,183.50 × 7,208.16
  4. Step 4: Simplify right side
    13,176.12x = 131,069,577.36
  5. Step 5: Solve for x
    x = 131,069,577.36/13,176.12
  6. Step 6: Final answer
    x = 9,947.51

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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.