Home / 13,145.99-19,719.04-3,285.28

Finding the Fourth Proportional to 13,145.99, 19,719.04 and 3,285.28

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Solution

The fourth proportional to 13,145.99, 19,719.04 and 3,285.28 is: 4,927.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.99 : 19,719.04 = 3,285.28 : x
  2. Step 2: Convert to fraction form
    13,145.99/19,719.04 = 3,285.28/x
  3. Step 3: Cross multiply
    13,145.99x = 19,719.04 × 3,285.28
  4. Step 4: Simplify right side
    13,145.99x = 64,782,617.03
  5. Step 5: Solve for x
    x = 64,782,617.03/13,145.99
  6. Step 6: Final answer
    x = 4,927.94

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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.