Home / 12,214.48-18,276.36-7,286.80

Finding the Fourth Proportional to 12,214.48, 18,276.36 and 7,286.80

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Solution

The fourth proportional to 12,214.48, 18,276.36 and 7,286.80 is: 10,903.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.48 : 18,276.36 = 7,286.80 : x
  2. Step 2: Convert to fraction form
    12,214.48/18,276.36 = 7,286.80/x
  3. Step 3: Cross multiply
    12,214.48x = 18,276.36 × 7,286.80
  4. Step 4: Simplify right side
    12,214.48x = 133,176,180.05
  5. Step 5: Solve for x
    x = 133,176,180.05/12,214.48
  6. Step 6: Final answer
    x = 10,903.14

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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.