Home / 12,735.72-17,576.10-7,147.08

Finding the Fourth Proportional to 12,735.72, 17,576.10 and 7,147.08

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Solution

The fourth proportional to 12,735.72, 17,576.10 and 7,147.08 is: 9,863.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,735.72 : 17,576.10 = 7,147.08 : x
  2. Step 2: Convert to fraction form
    12,735.72/17,576.10 = 7,147.08/x
  3. Step 3: Cross multiply
    12,735.72x = 17,576.10 × 7,147.08
  4. Step 4: Simplify right side
    12,735.72x = 125,617,792.79
  5. Step 5: Solve for x
    x = 125,617,792.79/12,735.72
  6. Step 6: Final answer
    x = 9,863.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.