Home / 15,199.83-20,975.20-9,537.62

Finding the Fourth Proportional to 15,199.83, 20,975.20 and 9,537.62

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Solution

The fourth proportional to 15,199.83, 20,975.20 and 9,537.62 is: 13,161.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,199.83 : 20,975.20 = 9,537.62 : x
  2. Step 2: Convert to fraction form
    15,199.83/20,975.20 = 9,537.62/x
  3. Step 3: Cross multiply
    15,199.83x = 20,975.20 × 9,537.62
  4. Step 4: Simplify right side
    15,199.83x = 200,053,358.30
  5. Step 5: Solve for x
    x = 200,053,358.30/15,199.83
  6. Step 6: Final answer
    x = 13,161.55

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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.