Home / 13,020.16-19,533.68-5,629.80

Finding the Fourth Proportional to 13,020.16, 19,533.68 and 5,629.80

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Solution

The fourth proportional to 13,020.16, 19,533.68 and 5,629.80 is: 8,446.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.16 : 19,533.68 = 5,629.80 : x
  2. Step 2: Convert to fraction form
    13,020.16/19,533.68 = 5,629.80/x
  3. Step 3: Cross multiply
    13,020.16x = 19,533.68 × 5,629.80
  4. Step 4: Simplify right side
    13,020.16x = 109,970,711.66
  5. Step 5: Solve for x
    x = 109,970,711.66/13,020.16
  6. Step 6: Final answer
    x = 8,446.19

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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.