Home / 9,109.26-13,662.81-2,869.02

Finding the Fourth Proportional to 9,109.26, 13,662.81 and 2,869.02

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Solution

The fourth proportional to 9,109.26, 13,662.81 and 2,869.02 is: 4,303.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.26 : 13,662.81 = 2,869.02 : x
  2. Step 2: Convert to fraction form
    9,109.26/13,662.81 = 2,869.02/x
  3. Step 3: Cross multiply
    9,109.26x = 13,662.81 × 2,869.02
  4. Step 4: Simplify right side
    9,109.26x = 39,198,875.15
  5. Step 5: Solve for x
    x = 39,198,875.15/9,109.26
  6. Step 6: Final answer
    x = 4,303.19

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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.