Home / 11,629.12-17,445.60-3,838.40

Finding the Fourth Proportional to 11,629.12, 17,445.60 and 3,838.40

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Solution

The fourth proportional to 11,629.12, 17,445.60 and 3,838.40 is: 5,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,629.12 : 17,445.60 = 3,838.40 : x
  2. Step 2: Convert to fraction form
    11,629.12/17,445.60 = 3,838.40/x
  3. Step 3: Cross multiply
    11,629.12x = 17,445.60 × 3,838.40
  4. Step 4: Simplify right side
    11,629.12x = 66,963,191.04
  5. Step 5: Solve for x
    x = 66,963,191.04/11,629.12
  6. Step 6: Final answer
    x = 5,758.23

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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.