Home / 15,933.60-21,976.20-10,268.91

Finding the Fourth Proportional to 15,933.60, 21,976.20 and 10,268.91

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Solution

The fourth proportional to 15,933.60, 21,976.20 and 10,268.91 is: 14,163.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,933.60 : 21,976.20 = 10,268.91 : x
  2. Step 2: Convert to fraction form
    15,933.60/21,976.20 = 10,268.91/x
  3. Step 3: Cross multiply
    15,933.60x = 21,976.20 × 10,268.91
  4. Step 4: Simplify right side
    15,933.60x = 225,671,619.94
  5. Step 5: Solve for x
    x = 225,671,619.94/15,933.60
  6. Step 6: Final answer
    x = 14,163.25

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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.