Home / 12,190.20-18,263.70-10,332.60

Finding the Fourth Proportional to 12,190.20, 18,263.70 and 10,332.60

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Solution

The fourth proportional to 12,190.20, 18,263.70 and 10,332.60 is: 15,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.20 : 18,263.70 = 10,332.60 : x
  2. Step 2: Convert to fraction form
    12,190.20/18,263.70 = 10,332.60/x
  3. Step 3: Cross multiply
    12,190.20x = 18,263.70 × 10,332.60
  4. Step 4: Simplify right side
    12,190.20x = 188,711,506.62
  5. Step 5: Solve for x
    x = 188,711,506.62/12,190.20
  6. Step 6: Final answer
    x = 15,480.59

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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.