Home / 15,202.05-20,979.18-9,537.03

Finding the Fourth Proportional to 15,202.05, 20,979.18 and 9,537.03

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Solution

The fourth proportional to 15,202.05, 20,979.18 and 9,537.03 is: 13,161.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,202.05 : 20,979.18 = 9,537.03 : x
  2. Step 2: Convert to fraction form
    15,202.05/20,979.18 = 9,537.03/x
  3. Step 3: Cross multiply
    15,202.05x = 20,979.18 × 9,537.03
  4. Step 4: Simplify right side
    15,202.05x = 200,079,069.04
  5. Step 5: Solve for x
    x = 200,079,069.04/15,202.05
  6. Step 6: Final answer
    x = 13,161.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.