Home / 13,758.54-18,993.78-8,727.90

Finding the Fourth Proportional to 13,758.54, 18,993.78 and 8,727.90

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Solution

The fourth proportional to 13,758.54, 18,993.78 and 8,727.90 is: 12,048.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.54 : 18,993.78 = 8,727.90 : x
  2. Step 2: Convert to fraction form
    13,758.54/18,993.78 = 8,727.90/x
  3. Step 3: Cross multiply
    13,758.54x = 18,993.78 × 8,727.90
  4. Step 4: Simplify right side
    13,758.54x = 165,775,812.46
  5. Step 5: Solve for x
    x = 165,775,812.46/13,758.54
  6. Step 6: Final answer
    x = 12,048.94

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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.