Home / 12,301.20-18,453.60-3,979.62

Finding the Fourth Proportional to 12,301.20, 18,453.60 and 3,979.62

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Solution

The fourth proportional to 12,301.20, 18,453.60 and 3,979.62 is: 5,970.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301.20 : 18,453.60 = 3,979.62 : x
  2. Step 2: Convert to fraction form
    12,301.20/18,453.60 = 3,979.62/x
  3. Step 3: Cross multiply
    12,301.20x = 18,453.60 × 3,979.62
  4. Step 4: Simplify right side
    12,301.20x = 73,438,315.63
  5. Step 5: Solve for x
    x = 73,438,315.63/12,301.20
  6. Step 6: Final answer
    x = 5,970.01

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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.