Home / 12,440.58-17,170.26-7,407.75

Finding the Fourth Proportional to 12,440.58, 17,170.26 and 7,407.75

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Solution

The fourth proportional to 12,440.58, 17,170.26 and 7,407.75 is: 10,224.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.58 : 17,170.26 = 7,407.75 : x
  2. Step 2: Convert to fraction form
    12,440.58/17,170.26 = 7,407.75/x
  3. Step 3: Cross multiply
    12,440.58x = 17,170.26 × 7,407.75
  4. Step 4: Simplify right side
    12,440.58x = 127,192,993.52
  5. Step 5: Solve for x
    x = 127,192,993.52/12,440.58
  6. Step 6: Final answer
    x = 10,224.04

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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.