Home / 10,200.87-15,297.80-3,959.42

Finding the Fourth Proportional to 10,200.87, 15,297.80 and 3,959.42

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Solution

The fourth proportional to 10,200.87, 15,297.80 and 3,959.42 is: 5,937.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,200.87 : 15,297.80 = 3,959.42 : x
  2. Step 2: Convert to fraction form
    10,200.87/15,297.80 = 3,959.42/x
  3. Step 3: Cross multiply
    10,200.87x = 15,297.80 × 3,959.42
  4. Step 4: Simplify right side
    10,200.87x = 60,570,318.99
  5. Step 5: Solve for x
    x = 60,570,318.99/10,200.87
  6. Step 6: Final answer
    x = 5,937.76

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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.