Home / 13,238.93-18,268.36-7,933.61

Finding the Fourth Proportional to 13,238.93, 18,268.36 and 7,933.61

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Solution

The fourth proportional to 13,238.93, 18,268.36 and 7,933.61 is: 10,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.93 : 18,268.36 = 7,933.61 : x
  2. Step 2: Convert to fraction form
    13,238.93/18,268.36 = 7,933.61/x
  3. Step 3: Cross multiply
    13,238.93x = 18,268.36 × 7,933.61
  4. Step 4: Simplify right side
    13,238.93x = 144,934,043.58
  5. Step 5: Solve for x
    x = 144,934,043.58/13,238.93
  6. Step 6: Final answer
    x = 10,947.56

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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.