Home / 18,315.80-27,474.74-5,169.16

Finding the Fourth Proportional to 18,315.80, 27,474.74 and 5,169.16

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Solution

The fourth proportional to 18,315.80, 27,474.74 and 5,169.16 is: 7,754.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.80 : 27,474.74 = 5,169.16 : x
  2. Step 2: Convert to fraction form
    18,315.80/27,474.74 = 5,169.16/x
  3. Step 3: Cross multiply
    18,315.80x = 27,474.74 × 5,169.16
  4. Step 4: Simplify right side
    18,315.80x = 142,021,327.02
  5. Step 5: Solve for x
    x = 142,021,327.02/18,315.80
  6. Step 6: Final answer
    x = 7,754.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.