Home / 15,072.24-22,609.20-3,979.20

Finding the Fourth Proportional to 15,072.24, 22,609.20 and 3,979.20

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Solution

The fourth proportional to 15,072.24, 22,609.20 and 3,979.20 is: 5,969.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,072.24 : 22,609.20 = 3,979.20 : x
  2. Step 2: Convert to fraction form
    15,072.24/22,609.20 = 3,979.20/x
  3. Step 3: Cross multiply
    15,072.24x = 22,609.20 × 3,979.20
  4. Step 4: Simplify right side
    15,072.24x = 89,966,528.64
  5. Step 5: Solve for x
    x = 89,966,528.64/15,072.24
  6. Step 6: Final answer
    x = 5,969.02

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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.