Home / 12,357.12-18,625.92-11,305.24

Finding the Fourth Proportional to 12,357.12, 18,625.92 and 11,305.24

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Solution

The fourth proportional to 12,357.12, 18,625.92 and 11,305.24 is: 17,040.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.12 : 18,625.92 = 11,305.24 : x
  2. Step 2: Convert to fraction form
    12,357.12/18,625.92 = 11,305.24/x
  3. Step 3: Cross multiply
    12,357.12x = 18,625.92 × 11,305.24
  4. Step 4: Simplify right side
    12,357.12x = 210,570,449.26
  5. Step 5: Solve for x
    x = 210,570,449.26/12,357.12
  6. Step 6: Final answer
    x = 17,040.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.