Home / 12,150.61-18,225.37-6,960.13

Finding the Fourth Proportional to 12,150.61, 18,225.37 and 6,960.13

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Solution

The fourth proportional to 12,150.61, 18,225.37 and 6,960.13 is: 10,439.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,150.61 : 18,225.37 = 6,960.13 : x
  2. Step 2: Convert to fraction form
    12,150.61/18,225.37 = 6,960.13/x
  3. Step 3: Cross multiply
    12,150.61x = 18,225.37 × 6,960.13
  4. Step 4: Simplify right side
    12,150.61x = 126,850,907.63
  5. Step 5: Solve for x
    x = 126,850,907.63/12,150.61
  6. Step 6: Final answer
    x = 10,439.88

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Double scale
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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.