Home / 12,243.10-16,896.36-7,070.54

Finding the Fourth Proportional to 12,243.10, 16,896.36 and 7,070.54

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Solution

The fourth proportional to 12,243.10, 16,896.36 and 7,070.54 is: 9,757.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.10 : 16,896.36 = 7,070.54 : x
  2. Step 2: Convert to fraction form
    12,243.10/16,896.36 = 7,070.54/x
  3. Step 3: Cross multiply
    12,243.10x = 16,896.36 × 7,070.54
  4. Step 4: Simplify right side
    12,243.10x = 119,466,396.48
  5. Step 5: Solve for x
    x = 119,466,396.48/12,243.10
  6. Step 6: Final answer
    x = 9,757.86

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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.