Home / 13,277.20-18,322.84-7,309.02

Finding the Fourth Proportional to 13,277.20, 18,322.84 and 7,309.02

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Solution

The fourth proportional to 13,277.20, 18,322.84 and 7,309.02 is: 10,086.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.20 : 18,322.84 = 7,309.02 : x
  2. Step 2: Convert to fraction form
    13,277.20/18,322.84 = 7,309.02/x
  3. Step 3: Cross multiply
    13,277.20x = 18,322.84 × 7,309.02
  4. Step 4: Simplify right side
    13,277.20x = 133,922,004.02
  5. Step 5: Solve for x
    x = 133,922,004.02/13,277.20
  6. Step 6: Final answer
    x = 10,086.61

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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.