Home / 13,718.25-18,923.90-9,234.36

Finding the Fourth Proportional to 13,718.25, 18,923.90 and 9,234.36

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Solution

The fourth proportional to 13,718.25, 18,923.90 and 9,234.36 is: 12,738.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.25 : 18,923.90 = 9,234.36 : x
  2. Step 2: Convert to fraction form
    13,718.25/18,923.90 = 9,234.36/x
  3. Step 3: Cross multiply
    13,718.25x = 18,923.90 × 9,234.36
  4. Step 4: Simplify right side
    13,718.25x = 174,750,059.03
  5. Step 5: Solve for x
    x = 174,750,059.03/13,718.25
  6. Step 6: Final answer
    x = 12,738.51

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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.