Home / 11,869.20-17,812.55-5,629.19

Finding the Fourth Proportional to 11,869.20, 17,812.55 and 5,629.19

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Solution

The fourth proportional to 11,869.20, 17,812.55 and 5,629.19 is: 8,447.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869.20 : 17,812.55 = 5,629.19 : x
  2. Step 2: Convert to fraction form
    11,869.20/17,812.55 = 5,629.19/x
  3. Step 3: Cross multiply
    11,869.20x = 17,812.55 × 5,629.19
  4. Step 4: Simplify right side
    11,869.20x = 100,270,153.34
  5. Step 5: Solve for x
    x = 100,270,153.34/11,869.20
  6. Step 6: Final answer
    x = 8,447.93

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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.