Home / 12,448.92-17,170.71-7,409.26

Finding the Fourth Proportional to 12,448.92, 17,170.71 and 7,409.26

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Solution

The fourth proportional to 12,448.92, 17,170.71 and 7,409.26 is: 10,219.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.92 : 17,170.71 = 7,409.26 : x
  2. Step 2: Convert to fraction form
    12,448.92/17,170.71 = 7,409.26/x
  3. Step 3: Cross multiply
    12,448.92x = 17,170.71 × 7,409.26
  4. Step 4: Simplify right side
    12,448.92x = 127,222,254.77
  5. Step 5: Solve for x
    x = 127,222,254.77/12,448.92
  6. Step 6: Final answer
    x = 10,219.54

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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.