Home / 8,001.78-12,004.62-2,455.12

Finding the Fourth Proportional to 8,001.78, 12,004.62 and 2,455.12

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Solution

The fourth proportional to 8,001.78, 12,004.62 and 2,455.12 is: 3,683.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.78 : 12,004.62 = 2,455.12 : x
  2. Step 2: Convert to fraction form
    8,001.78/12,004.62 = 2,455.12/x
  3. Step 3: Cross multiply
    8,001.78x = 12,004.62 × 2,455.12
  4. Step 4: Simplify right side
    8,001.78x = 29,472,782.65
  5. Step 5: Solve for x
    x = 29,472,782.65/8,001.78
  6. Step 6: Final answer
    x = 3,683.28

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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.