Home / 12,629.40-17,410.38-8,840.88

Finding the Fourth Proportional to 12,629.40, 17,410.38 and 8,840.88

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Solution

The fourth proportional to 12,629.40, 17,410.38 and 8,840.88 is: 12,187.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.40 : 17,410.38 = 8,840.88 : x
  2. Step 2: Convert to fraction form
    12,629.40/17,410.38 = 8,840.88/x
  3. Step 3: Cross multiply
    12,629.40x = 17,410.38 × 8,840.88
  4. Step 4: Simplify right side
    12,629.40x = 153,923,080.33
  5. Step 5: Solve for x
    x = 153,923,080.33/12,629.40
  6. Step 6: Final answer
    x = 12,187.68

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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.