Home / 15,991.12-22,069.83-11,529.64

Finding the Fourth Proportional to 15,991.12, 22,069.83 and 11,529.64

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Solution

The fourth proportional to 15,991.12, 22,069.83 and 11,529.64 is: 15,912.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.12 : 22,069.83 = 11,529.64 : x
  2. Step 2: Convert to fraction form
    15,991.12/22,069.83 = 11,529.64/x
  3. Step 3: Cross multiply
    15,991.12x = 22,069.83 × 11,529.64
  4. Step 4: Simplify right side
    15,991.12x = 254,457,194.76
  5. Step 5: Solve for x
    x = 254,457,194.76/15,991.12
  6. Step 6: Final answer
    x = 15,912.41

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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.