Home / 12,161.21-18,260.91-7,252.74

Finding the Fourth Proportional to 12,161.21, 18,260.91 and 7,252.74

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Solution

The fourth proportional to 12,161.21, 18,260.91 and 7,252.74 is: 10,890.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.21 : 18,260.91 = 7,252.74 : x
  2. Step 2: Convert to fraction form
    12,161.21/18,260.91 = 7,252.74/x
  3. Step 3: Cross multiply
    12,161.21x = 18,260.91 × 7,252.74
  4. Step 4: Simplify right side
    12,161.21x = 132,441,632.39
  5. Step 5: Solve for x
    x = 132,441,632.39/12,161.21
  6. Step 6: Final answer
    x = 10,890.50

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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.