Home / 15,202.83-20,979.33-9,540.62

Finding the Fourth Proportional to 15,202.83, 20,979.33 and 9,540.62

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Solution

The fourth proportional to 15,202.83, 20,979.33 and 9,540.62 is: 13,165.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,202.83 : 20,979.33 = 9,540.62 : x
  2. Step 2: Convert to fraction form
    15,202.83/20,979.33 = 9,540.62/x
  3. Step 3: Cross multiply
    15,202.83x = 20,979.33 × 9,540.62
  4. Step 4: Simplify right side
    15,202.83x = 200,155,710.49
  5. Step 5: Solve for x
    x = 200,155,710.49/15,202.83
  6. Step 6: Final answer
    x = 13,165.69

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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.