Home / 12,392.23-18,571.94-9,089.86

Finding the Fourth Proportional to 12,392.23, 18,571.94 and 9,089.86

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Solution

The fourth proportional to 12,392.23, 18,571.94 and 9,089.86 is: 13,622.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.23 : 18,571.94 = 9,089.86 : x
  2. Step 2: Convert to fraction form
    12,392.23/18,571.94 = 9,089.86/x
  3. Step 3: Cross multiply
    12,392.23x = 18,571.94 × 9,089.86
  4. Step 4: Simplify right side
    12,392.23x = 168,816,276.74
  5. Step 5: Solve for x
    x = 168,816,276.74/12,392.23
  6. Step 6: Final answer
    x = 13,622.75

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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.