Home / 6,987.99-10,478.20-3,470.27

Finding the Fourth Proportional to 6,987.99, 10,478.20 and 3,470.27

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Solution

The fourth proportional to 6,987.99, 10,478.20 and 3,470.27 is: 5,203.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.99 : 10,478.20 = 3,470.27 : x
  2. Step 2: Convert to fraction form
    6,987.99/10,478.20 = 3,470.27/x
  3. Step 3: Cross multiply
    6,987.99x = 10,478.20 × 3,470.27
  4. Step 4: Simplify right side
    6,987.99x = 36,362,183.11
  5. Step 5: Solve for x
    x = 36,362,183.11/6,987.99
  6. Step 6: Final answer
    x = 5,203.53

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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.