Home / 13,764.20-18,997.62-9,048.92

Finding the Fourth Proportional to 13,764.20, 18,997.62 and 9,048.92

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Solution

The fourth proportional to 13,764.20, 18,997.62 and 9,048.92 is: 12,489.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.20 : 18,997.62 = 9,048.92 : x
  2. Step 2: Convert to fraction form
    13,764.20/18,997.62 = 9,048.92/x
  3. Step 3: Cross multiply
    13,764.20x = 18,997.62 × 9,048.92
  4. Step 4: Simplify right side
    13,764.20x = 171,907,943.57
  5. Step 5: Solve for x
    x = 171,907,943.57/13,764.20
  6. Step 6: Final answer
    x = 12,489.50

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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.